JP7458586B2 - Management device, management method, and program - Google Patents

Description

The present invention relates to a management device, a management method, and a program.

With the development of communication network technology such as computers and the Internet, companies are now provided with services that allow them to notify customers of information online. For example, a customer registers personal information such as their name, address, and mobile phone number in a personal page set up on a website provided by the company. The company then uses the customer's personal information registered in the personal page to provide information tailored to the customer. For example, a company provides information introducing new products to the customer's address or email address registered on the personal page. Patent Document 1 discloses a technology for sending an electronic notification in advance of the delivery of printed materials in order to improve the opening rate of printed materials delivered to customers.

On the other hand, one example of a technology by which companies provide information online is a messaging service that sends messages to customers' mobile phones. One messaging service, for example, sends messages to phone numbers. For example, RCS (Rich Communication Services), SMS (Short Message Service), and MMS (Multimedia Messaging Service) are widely known as services that send messages to phone numbers. RCS is a standard for implementing instant messengers for mobile phones at the terminal level, and uses the mobile phone number as the user account used for communication. Furthermore, with RCS, the upper limit on the number of characters that can be sent as a message is set higher than with SMS and MMS.

When a company provides a service that sends messages to customers' phone numbers, it is necessary to keep track of whether the customer's phone numbers have changed. Even if a customer's phone number has changed, the company has no way of knowing that the phone number has changed unless the phone number registered on the customer's personal page is updated to the new number. Even if a customer's phone number has changed and the company sends a message to the previous number, the customer will not be able to receive the message.

Further, when a telephone number is canceled, the canceled telephone number is generally assigned to a telephone number of another person's mobile phone or the like after a predetermined period of time has passed after the cancellation. Therefore, a customer's phone number may have changed and the number may have been assigned to someone else. In this case, if a message is sent from the company to the number before the change, there is a possibility that someone other than the customer will be notified of the message from the company.

In most cases, it is thought that other people will be suspicious of messages they do not recognize and will not reply to messages. For this reason, one way for companies to manage customer phone numbers is to determine that the customer's phone number has changed when the customer does not receive a reply to a message sent by the customer, and change the phone number to the customer's phone number. One possible method is to stop the service that notifies messages.

There are two possible cases where there is no reply to the message: The first case is when a message from a company is sent to someone else and there is no reply. The second case is when a customer who has not changed their phone number receives messages from the company but does not respond. It is difficult to distinguish between the two cases, and with the management method described above, if the second case occurs frequently, companies may unduly suppress the provision of information to customers, resulting in a loss of profits. You may lose the opportunity to obtain Furthermore, in the first case, there is a high possibility that a stranger who receives an unfamiliar message will not have a good impression of the company that sent the notification. For this reason, there is a risk that the image of the company will be degraded. In other words, the above-mentioned management method is hardly a good idea. However, if someone impersonates the customer and replies, it may cause a serious accident, so a system that can appropriately manage the customer's phone number is desired.

Another way for companies to manage their customers' phone numbers is to notify them when a customer's phone number changes by using a notification method other than sending a message to the phone number, prompting them to update their My Page. Conceivable. Notification methods other than message notification to a telephone number include, for example, delivery of printed matter to the customer's address or notification to the customer's e-mail address. The customer's address and e-mail address can be obtained from the information registered on My Page.

Japanese Patent Application Publication No. 2018-101391

However, in most cases, an ID and password are set on the My Page. A single customer often has My Pages registered with many different companies, making it difficult to remember all the IDs and passwords. Even if a customer decides to update his/her own My Page from a notice such as a printed matter, there is a possibility that the customer has already forgotten his/her ID and password. In this case, it is possible to update the My Page by confirming or resetting the ID and password, but this takes time and effort, and there is a problem in that the customer loses motivation to update the My Page. Ta.

The present invention was made in view of this situation, and is a management system that allows customers to appropriately manage their phone numbers without requiring customers to confirm or reset their IDs and passwords. Provide equipment, management methods, and programs.

In order to solve the above-mentioned problems of the present invention, the present invention is a management device that manages whether or not the telephone number of a customer terminal has changed, and is equipped with a notification control unit that controls the notification of an electronic advance notice, which is a message announcing the delivery of a delivery item, to the telephone number of the customer terminal, a delivery control unit that controls the delivery of a delivery item having first unique information written thereon to the customer address associated with the customer terminal, an acquisition unit that acquires information sent from the customer terminal as a reply to the electronic advance notice after the delivery of the delivery item, the information including second unique information, and a judgment unit that determines whether or not the telephone number of the customer terminal has changed based on the first unique information written on the delivery item and the second unique information acquired by the acquisition unit.

Further, in the above-mentioned management device , the present invention provides that the determination unit determines that the telephone number of the customer terminal has not been changed when the second unique information matches the first unique information. .

Further, in the above-mentioned management device, the present invention provides link destination information indicating a linked website in the electronic advance notice, and the acquisition unit is configured to include the information on the linked website that is input to the linked website. If the second unique information matches the first unique information, the determination unit determines that the telephone number of the customer terminal has not been changed.

The present invention also provides a management method using a management device that manages whether or not there has been a change in the telephone number of a customer terminal, in which the notification control unit sends a message to the telephone number of the customer terminal notifying the delivery of the item. The delivery control unit controls the delivery of the delivery item in which the first unique information is written to the customer address associated with the customer terminal, and the acquisition unit controls the delivery of the delivery item, which includes the first unique information. The determination unit acquires information that is transmitted from the customer terminal as a reply to the electronic advance notification after delivery of the item and includes second unique information, and determines whether the determining unit is the information that includes the first unique information written on the delivered item. and the second unique information acquired by the acquisition unit, the management method determines whether the telephone number of the customer terminal has been changed.

The present invention also provides a program for causing a computer to operate as the management device described above, and for causing the computer to function as each unit of the management device.

According to the present invention, a customer's telephone number can be appropriately managed without requiring the customer to confirm or reset their ID and password.

FIG. 1 is a block diagram showing an example of the configuration of a telephone number management system 1 according to an embodiment. FIG. 1 is a block diagram showing an example of the configuration of a management device 10 according to an embodiment. It is a diagram showing an example of the configuration of customer information 120 according to the embodiment. It is a figure showing an example of composition of change confirmation information 121 concerning an embodiment. FIG. 2 is a diagram showing an example of an electronic advance notice according to an embodiment. It is a figure showing an example of delivery thing H concerning an embodiment. 4 is a flowchart showing a flow of processing performed by a management device 10 according to an embodiment.

Embodiments of the invention will be described below with reference to the drawings.

First, the configuration of the telephone number management system 1 will be explained. FIG. 1 is a block diagram showing an example of the configuration of a telephone number management system 1 according to an embodiment. The telephone number management system 1 includes, for example, a management device 10, a company server 20, a plurality of customer terminals 30 (customer terminals 30-1, 30-2, ..., 30-N), a message notification server 40, and a delivery system. A system 50 is provided. Here, N is an arbitrary natural number. The management device 10, the company server 20, the customer terminal 30, the message notification server 40, and the delivery system 50 are communicably connected via the communication network NW. Note that although the example in FIG. 1 shows an example in which the telephone number management system 1 includes one management device 10, the present invention is not limited to this. The telephone number management system 1 may include a plurality of management devices 10. Further, the telephone number management system 1 may include a plurality of company servers 20, one customer terminal 30, and the like.

The management device 10 is a computer device such as a cloud device, a server device, or a personal computer. The management device 10 manages information regarding customers in response to requests from the company server 20. Specifically, the management device 10 periodically or irregularly determines whether the telephone number of the customer terminal 30 has been changed. For example, the management device 10 notifies the corporate server 20 of the determination result of determining whether the telephone number of the customer terminal 30 has been changed.

The management device 10 notifies the customer terminal 30 of the message via the message notification server 40. Furthermore, the management device 10 receives a reply from the customer terminal 30 to the message notified to the customer terminal 30. The management device 10 delivers items to customers via the delivery system 50. The management device 10 determines whether there is a change in the telephone number of the customer terminal 30 based on the contents of the delivery item delivered to the customer and the contents of the reply to the message notified to the customer terminal 30.

Specifically, the management device 10 issues an electronic advance notice before delivering the item. The electronic advance notification is a notification message M (see FIG. 5) that gives advance notice of the delivery of the item to the customer. The management device 10 adjusts the notification timing of the notification message and the distribution timing of delivering the delivery item H so that the delivery item H addressed to the customer is delivered after the electronic advance notice is sent to the customer terminal 30.

Meanwhile, the management device 10 delivers the delivery item H (see FIG. 6) containing the unique information U to the customer's address at a specified delivery timing. The unique information U is information specific to each delivery item H, and is, for example, information indicating a string of characters that is a random mixture of numbers and letters.

The management device 10 notifies the customer of the delivery of the item by an electronic advance notice, and notifies the customer to reply to the electronic advance notice using the unique information U indicated on the item H. The management device 10 determines whether there has been a change in the telephone number of the customer terminal 30 based on the contents of the reply to the electronic advance notice.

For example, if the telephone number of the customer terminal 30 is changed and the telephone number before the change is assigned to another person, the electronic advance notice will be notified to the other person. On the other hand, since the delivery item H is delivered to the customer's address, it does not reach another person. Even if someone who has received the electronic advance notice attempts to reply pretending to be the customer, the delivery item H addressed to the customer will not be delivered to the other person, and the correct unique information cannot be input. Therefore, the unique information shown in the reply to the electronic advance notice does not match the unique information U notified about the delivery item H.

Taking advantage of this, the management device 10 determines that the telephone number of the customer terminal 30 has been changed if the unique information indicated in the reply to the electronic advance notice does not match the unique information U notified in the delivery H. On the other hand, the management device 10 determines that the telephone number of the customer terminal 30 has not been changed if the unique information indicated in the reply to the electronic advance notice matches the unique information U notified in the delivery H.

The company server 20 is a computer device such as a cloud device, a server device, or a personal computer in a company. For example, the company server 20 is a server device that provides a service for notifying customers of information (hereinafter referred to as information notification service). The company server 20 requests the management device 10 to confirm whether the telephone number of the customer terminal 30 to which the information notification service is provided has been changed.

The company server 20 determines the notification means of the information notification service to be provided to the customer based on the confirmation result of whether the telephone number notified from the management device 10 has been changed. For example, if the telephone number of the customer terminal 30 has not been changed, the company server 20 notifies the customer of the information using a message notification addressed to the phone number. On the other hand, if the telephone number of the customer terminal 30 has been changed, the company server 20 notifies the customer of the information using a notification method different from the message notification addressed to the phone number, such as delivery or e-mail. . Thereby, when the telephone number of the customer terminal 30 is changed, it is possible to suppress erroneous notification in which a message is erroneously notified to the telephone number before the change.

The customer terminal 30 is a computer device equipped with a communication function, such as a smartphone, mobile phone, tablet terminal, wearable terminal, etc. with which the customer has a contract. The customer terminal 30 is a terminal on which an application program (hereinafter referred to as an application) that provides an information notification service provided by a company is installed. The customer terminal 30 may be equipped with a browsing function that allows access to a Web site that provides the information providing service.

The customer terminal 30 includes, for example, a communication unit 31, a display unit 32, and a control unit 33. The communication unit 31 communicates with the company server 20 via the communication network NW. The display unit 32 displays an image according to the control of the control unit 33. The control unit 33 comprehensively controls the customer terminal 30. For example, the control unit 33 starts an application for the information notification service provided by the company server 20 in response to an operational input by the customer, and causes an image related to the information notification service to be displayed on the display unit 32. The image related to the information notification service is, for example, an input form into which the customer inputs information required when registering on the company's My Page, etc. The control unit 33 transmits the contents entered into the input form by the operational input by the customer, etc., to the company server 20 via the communication unit 31.

The message notification server 40 is a computer device such as a cloud device, a server device, or a personal computer that provides a messaging service. The messaging service here is a service that notifies a message to a telephone number, such as RCS, SMS, and MMS. The message notification server 40 receives notification instruction information regarding message notification from the management device 10, and sends a notification message M (see FIG. 5) to a telephone number in accordance with the received notification instruction information. The notification instruction information is information indicating an instruction regarding notification of a message, and is information indicating, for example, a telephone number of a notification destination, notification contents, notification date and time, and the like.

The delivery system 50 is a system that delivers items H (see FIG. 6). The delivery items H here are physical objects delivered to the customer's address, such as sealed letters, envelopes, and printed matter such as postcards. The delivery system 50 includes a printing device, a delivery company, and the like. The delivery system 50 delivers the item H to the customer's address in accordance with delivery instruction information indicating the delivery instruction from the management device 10. The delivery instruction information is information indicating instructions regarding the delivery of the delivery item H, and is information indicating, for example, the address of the notification destination, the content to be delivered, the delivery date and time, and the like. For example, the printing device generates printed matter by printing the content to be delivered on paper based on the delivery instruction information. The printing device completes the delivery item H by attaching the address specified by the delivery instruction information as the destination to an envelope or the like in which the generated printed matter is sealed. Delivery item H is delivered to the customer by a delivery company.

The communication network NW is, for example, a communication network that includes some or all of the Internet, a WAN (Wide Area Network), a LAN (Local Area Network), a provider device, a wireless base station, a dedicated line, and the like.

Here, the configuration of the management device 10 will be explained. FIG. 2 is a block diagram showing an example of the configuration of the management device 10 according to the embodiment. The management device 10 includes, for example, a communication section 11, a storage section 12, and a control section 13.

The communication unit 11 communicates with external devices via the communication network NW. The external devices here are the corporate server 20, the customer terminal 30, the message notification server 40, and the delivery system 50.

The storage unit 12 stores programs, variables, and various data necessary for realizing the functions of the management device 10. The storage unit 12 includes, for example, customer information 120 and change confirmation information 121. The customer information 120 is information about customers registered on a company's My Page or the like, and includes at least the telephone number of the customer terminal 30 and the customer's address. The change confirmation information 121 is information used to confirm whether or not the telephone number of the customer terminal 30 in the customer information 120 has been changed.

The control unit 13 controls each component of the management device 10. The control unit 13 is realized, for example, by a CPU (Central Processing Unit) of the management device 10 executing a program stored in the storage unit 12 in advance. Further, the control unit 13 may be realized as an integrated circuit such as an ASIC (Application Specific Integrated Circuit).

The control unit 13 includes, for example, an acquisition unit 130, a notification control unit 131, a delivery control unit 132, a determination unit 133, and a device control unit 134. The acquisition unit 130 acquires a reply to the electronic advance notice from the customer terminal 30 via the communication unit 11 . The notification control unit 131 controls notification of electronic advance notices by transmitting notification instruction information to the message notification server 40 via the communication unit 11. The delivery control unit 132 controls the delivery of the delivery item H by transmitting delivery instruction information to the delivery system 50 via the communication unit 11. The determining unit 133 determines whether there is a change in the telephone number of the customer terminal 30 based on the content shown in the reply to the electronic advance notice acquired by the acquiring unit 130. The device control unit 134 controls the management device 10 in an integrated manner.

Here, the customer information 120 will be explained. FIG. 3 is a diagram illustrating an example of the configuration of customer information 120 according to the embodiment. The customer information 120 is created for each customer, for example. The customer information 120 includes items such as a customer ID and customer information, for example. The customer ID is information that uniquely identifies a customer. The customer information is information regarding the customer specified by the customer ID, and includes items such as registration items, contents, registration date, and change confirmation date. The registered items are items registered as customer information, and include items such as name, address, date of birth, and telephone number, for example. The content is the content of the registered item, and the registration date is the date when the registered item was registered. The change confirmation date is the date on which it was confirmed whether or not there has been a change in the registered content of the registered item. The example in this figure shows that the customer's name is TF Taro, his address is Chiyoda-ku, Tokyo, his date of birth is August 14, 1991, and his telephone number is 090-1234-5678. Further, it is shown that the customer information was registered on the DD date of the MM month of the year YY.

Now, the change confirmation information 121 will be described. FIG. 4 is a diagram showing an example of the configuration of the change confirmation information 121 according to the embodiment. The change confirmation information 121 is created, for example, each time it is confirmed whether there has been a change in the telephone number of the customer terminal 30. The change confirmation information 121 includes items such as a customer ID and change confirmation information. The customer ID is information that uniquely identifies a customer. The change confirmation information is information used in the process of confirming whether there has been a change in the telephone number of the customer terminal 30 of the customer identified by the customer ID, and includes items such as an electronic advance notice, delivery, whether there has been a reply, and a judgment result.

The electronic advance notice is information about the electronic advance notice notified to the customer, and includes items such as the notification date and notification content. The notification date is information indicating the date on which the electronic advance notice was made. The notification content is information indicating the content notified in the electronic advance notice. The delivery item is information about the delivery item delivered to the customer, and includes items such as the delivery date, unique information, and delivery content. The delivery date is information indicating the date on which the delivery item was delivered. The unique information is information indicating the unique information shown on the delivery item. The delivery content is information indicating the content written on the delivery item. The presence or absence of a reply is information indicating the presence or absence of a reply to the electronic advance notice. The determination result is information indicating the result of determining whether or not there has been a change in the telephone number of the customer terminal 30. The determination date is information indicating the date on which it was determined whether or not there has been a change in the telephone number of the customer terminal 30.

In the example of this figure, it is shown that the electronic advance notice was notified on February 4, YY, and the item was delivered on February 5, YY. Further, there is a reply to the electronic advance notice, and as a result, it is shown that it has been determined that the telephone number of the customer terminal 30 has not been changed. It is also shown that such a determination was made on February 10th of the same year.

Here, electronic advance notice will be explained. FIG. 5 is a diagram illustrating an example of a notification message M of an electronic advance notice according to the embodiment. As shown in FIG. 5, the notification message M is notified to the customer terminal 30, and its contents are displayed on the display unit 32 via the application. In this example, the contents of the electronic advance notice are shown as ``The delivery will be delivered to the customer soon....Please reply with unique information.'' Further, a reply operation button B labeled "Reply" is shown below the electronic advance notice. When the customer touches operation button B, for example, another window opens and an input form with a message such as "Please enter unique information" is displayed. The customer inputs unique information into the input field shown on the input form and confirms the input information. As a result, a reply to the electronic advance notice is made.

Here, the delivery item H will be explained. FIG. 6 is a diagram showing an example of the delivery item H according to the embodiment. As shown in FIG. 6, the delivery item H is a printed matter such as a postcard. In this example, the delivery item H has a title titled "Notice from Company" and unique information U titled "Customer Unique Information." Additionally, the following message is written: "You have already been notified on your mobile phone. Please reply." The customer only has to reply to the electronic advance notice while checking the unique information written on the delivery item H, and there is no need to use the ID and password set when registering the company's My Page. That is, it is possible to check whether or not the telephone number of the customer terminal 30 has been changed without requiring the customer to confirm or reset the ID and password.

Here, the flow of processing performed by the management device 10 will be explained. FIG. 7 is a flowchart showing the flow of processing performed by the management device 10 according to the embodiment.

First, the management device 10 sends an electronic preliminary notification via the message notification server 40 to the phone number of the customer terminal 30 that is the target of checking whether or not there has been a change in the phone number (step S10). Then, the management device 10 delivers the delivery item H with the unique information U written thereon via the delivery system 50 to the address of the customer whose telephone number is to be checked for change (step S11).

The management device 10 determines whether there is a reply to the electronic advance notice (step S12). If there is a reply, the management device 10 determines whether the unique information shown in the reply matches the unique information U written in the delivery item H (step S13). If the unique information matches, the management device 10 determines that the telephone number of the customer terminal 30 has not been changed (step S14), and ends the process. On the other hand, if the unique information does not match, the management device 10 determines that the telephone number of the customer terminal 30 has been changed (step S15) and ends the process.

On the other hand, if there is no reply to the electronic advance notice in step S12, the management device 10 waits for a reply until a predetermined period of time has elapsed (step S16), and ends the process after the predetermined period of time has elapsed.

As described above, the management device 10 of the embodiment manages whether or not the telephone number of the customer terminal 30 has changed. The management device 10 includes a notification control section 131, a delivery control section 132, an acquisition section 130, and a determination section 133. The notification control unit 131 controls the notification of an electronic advance notice, which is a message that foretells the delivery of the delivery item H, to the telephone number of the customer terminal 30. The delivery control unit 132 controls the delivery of the delivery item H in which unique information U (an example of “first unique information”) is written, to the address of the customer associated with the customer terminal 30. The acquisition unit 130 acquires information that is transmitted from the customer terminal 30 after delivery of the delivery item H and includes unique information input to the customer terminal 30 (an example of "second unique information"). The determination unit 133 determines whether the telephone number of the customer terminal 30 has been changed based on the unique information U written on the delivery item H and the unique information included in the information acquired by the acquisition unit 130.

In this way, the management device 10 of the embodiment can determine whether the telephone number of the customer terminal 30 has changed, based on the unique information sent from the customer terminal 30. The unique information sent from the customer terminal 30 should match the unique information U written on the delivery H, and is set regardless of the ID or password. Therefore, it is possible to check whether the telephone number of the customer terminal 30 has changed, without requiring the customer to go to the trouble of checking and resetting their ID or password.

Furthermore, in the management device 10 of the embodiment, the acquisition unit 130 acquires a reply to the electronic advance notice. The reply shows the unique information entered by the customer. The determination unit 133 determines that the telephone number of the customer terminal 30 has not been changed when the unique information input by the customer matches the unique information U written on the delivery item H. As a result, the management device 10 of the embodiment can easily change the telephone number by determining whether or not the unique information shown in the reply is the same as the unique information U written in the delivery item H. It is possible to determine the presence or absence.

(Modified example of embodiment)
Here, a modification of the embodiment will be described. This modification differs from the above-described embodiment in that link destination information is shown in the electronic advance notice. The link destination information is information indicating a link destination website, and is, for example, a URL (Uniform Resource Locator) of a company's website.

In the telephone number management system 1 of this modification, link destination information such as a URL is shown in the electronic advance notice together with a notice of delivery of the delivery item H. Further, in the electronic advance notice, a message prompting the user to access the linked website and input the unique information U written on the delivery item H is notified.

The customer who received the electronic advance notice receives the delivery item H according to the contents indicated in the electronic advance notice, and then accesses the linked website and enters the unique information U written on the delivery item H. .

The acquisition unit 130 acquires unique information input to a linked website. The determination unit 133 determines that the telephone number of the customer terminal 30 has not been changed when the unique information input to the linked website matches the unique information U written on the delivery item H.

As described above, in the management device 10 of the modified example of the embodiment, the acquisition unit 130 acquires unique information (an example of "second unique information") input to a linked website. The determination unit 133 determines the telephone number of the customer terminal 30 when the unique information input to the linked website matches the unique information U (an example of "first unique information") described in the delivery item H. is determined to have not been changed. As a result, the management device 10 of the modified example of the embodiment uses a simple method of determining whether or not the unique information input to the website is the same as the unique information U written on the delivery item H. It is possible to determine whether there is a change in the number.

All or part of the management device 10 in the embodiment described above may be realized by a computer. In that case, a program for realizing this function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read into a computer system and executed. Note that the "computer system" herein includes hardware such as an OS and peripheral devices. Furthermore, the term "computer-readable recording medium" refers to portable media such as flexible disks, magneto-optical disks, ROMs, and CD-ROMs, and storage devices such as hard disks built into computer systems. Furthermore, a "computer-readable recording medium" refers to a storage medium that dynamically stores a program for a short period of time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. It may also include a device that retains a program for a certain period of time, such as a volatile memory inside a computer system that is a server or client in that case. Further, the above-mentioned program may be one for realizing a part of the above-mentioned functions, or may be one that can realize the above-mentioned functions in combination with a program already recorded in the computer system. It may also be realized using a programmable logic device such as an FPGA.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and includes designs within the scope of the gist of the present invention.

Reference Signs List 1: Telephone number management system 10: Management device 11: Communication unit 12: Storage unit 120: Customer information 121: Change confirmation information 13: Control unit 130: Acquisition unit 131: Notification control unit 132: Delivery control unit 133: Determination unit 134: Device control unit 20: Corporate server 30: Customer terminal 40: Message notification server 50: Delivery system

Claims (5)

A management device that manages whether or not a telephone number of a customer terminal has changed,
a notification control unit that controls notification of an electronic advance notice, which is a message forewarning the delivery of a delivery item, to the telephone number of the customer terminal;
a delivery control unit that controls delivery of a delivery item in which first unique information is written to a customer address associated with the customer terminal;
an acquisition unit that acquires information that is transmitted from the customer terminal as a reply to the electronic advance notice after delivery of the delivery item and that includes second unique information;
a determination unit that determines whether the telephone number of the customer terminal has been changed based on the first unique information written on the delivery item and the second unique information acquired by the acquisition unit;
A management device comprising: The determination unit determines that the telephone number of the customer terminal has not been changed when the second unique information matches the first unique information.
The management device according to claim 1. The electronic advance notice includes link destination information indicating the linked website,
The acquisition unit acquires the second unique information input to the linked website,
The determination unit determines that the telephone number of the customer terminal has not been changed when the second unique information matches the first unique information.
The management device according to claim 1. A management method for managing whether or not a telephone number of a customer terminal has changed, the method comprising:
a notification control unit that controls the notification of an electronic advance notice, which is a message notifying the delivery of the delivery item, to the telephone number of the customer terminal;
a delivery control unit that controls delivery of a delivery item on which the first unique information is described to a customer address associated with the customer terminal;
An acquisition unit acquires information transmitted from the customer terminal as a reply to the electronic advance notice after the delivery of the delivery item, the information including second unique information;
a determination unit determining whether or not a telephone number of the customer terminal has been changed based on the first unique information described on the delivery and the second unique information acquired by the acquisition unit;
Management method. A program for causing a computer to operate as the management device according to any one of claims 1 to 3, the program for causing the computer to function as each unit included in the management device.

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