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Kakao Login

Prerequisites

This document explains what you have to do before integrating Kakao Login.

Tag used in this document
Tag Description
Required You must apply the settings marked with this tag before integrating Kakao Login into your service.
If this tag is not attached, you can optionally apply the setting depending on the functions you want to use.

To integrate Kakao Login into your service, you MUST:

  1. Activate Kakao Login.
  2. Register Redirect URI.
  3. Set consent items.

You can additionally adopt other optional functions.

Activate Kakao Login Required

Kakao Login is an essential function to leverage user-based services such as Kakao Sync, or Kakao Talk. Refer to Kakao Login to learn more about Kakao Login.

To activate Kakao Login,

  1. Go to [My Application] > [Kakao Login].
  2. Set 'State' to 'ON' under 🅐Kakao Login Activation on the Kakao Login page.
NOTE: Preview consent screen

After setting consent items, you can preview the Consent screen as configured in consent items by clicking 🅒Preview the Consent screen.

How to activate Kakao Login

Advanced: Activate OpenID Connect

If you want to integrate Kakao Login with OpenID Connect, you must also set 'State' to 'ON' under 🅑OpenID Connect Activation.

Set Redirect URI Required

A Redirect URI is an essential factor in serving Kakao Login service because the Kakao server and a service server exchange information through the Redirect URI to proceed Kakao Login based on OAuth 2.0.

The Kakao server passes authentication information needed for a service to Redirect URI, and the service proceeds the information received through Redirect URI to makes the next request. If Redirect URI is not specified, an error occurs when logging in with Kakao.

How to set Redirect URI

You can set Redirect URIs in [My Application] > [Kakao Login] > [Redirect URI]. When you register Redirect URIs, you must comply with the following rules:

  • Redirect URI supports HTTP (80 port) and HTTPS (443 port) protocols.
  • You must add HTTP and HTTPS schemes separately because the Redirect URIs are sensitive to HTTP and HTTPS protocols.
  • You can set Redirect URIs up to 10. To set more than 10 Redirect URIs, request permission by referring to set wildcard subdomains.

You MUST NOT specify parameters in Redirect URI path. If you need to keep or send specific information, use state value by referring to Kakao Login > REST API.

Manage consent items Required

To use the personal information of a user who is logged in with Kakao Account for your service, you need user's consent to access personal information and permission. When users log in with Kakao, they can choose what to provide to your service by consent item. Then, Kakao provides your service with the personal information that users agree to provide as you request Kakao APIs such as the Retrieving user information API.

You can configure consent items needed for your service under 🅐Personal Information and 🅑Permission in [My Application] > [Kakao Login] > [Consent items]. You can check how the Consent screen would look in advance by clicking 🅒Preview the Consent screen.

How to set consent items

To enable a scope, click [Set] and then set detailed options.

Dialog box for setting consent items

🅐 Select the content type for the corresponding user information.

  • Required consent: Select this option when your service must get consent to the scope to use your service.
  • Optional consent: Select this option when you want to allow users to consent optionally. Users may agree to provide the corresponding information when they log in with Kakao Account. If the user has not agreed when logging in, the user is asked to consent again when a service needs the information.
  • Consent during use: Select this option when you want to ask permission when the consent is required, instead of asking when a user logs in. The scope with this option is not included on the Consent screen prompted when a user attempts to log in. If you request additional consent for the scope at the moment when the user information is required, you can get the consent.
  • Not request consent: Select this option when your service does not need user's consent.

🅑 Provision after collecting information through Kakao Account: If you select this option, Kakao requests the user to input the data and provides it to your app when a piece of specific user information has not been saved in a user's Kakao Account. See Provision after collecting information for more details.

🅒 Purpose of consent: Specify the reason why you need to collect user data. The purpose is not displayed on the Consent screen but used for a review to grant permission.

After the settings, click [Save]. The consent items, except for the ones set as 'Not request consent', are presented to users when they log in on the Consent screen with checkboxes and phrases asking to provide their personal information. The items set as 'Required consent' are displayed as ⓐ[Required], and the items set as 'Optional consent' are displayed as ⓑ[Optional] on the Consent screen.

Consent types

There are three types of consent items. When you configure consent items, you can set a consent type for each scope. Then, the consent screen is displayed differently as specified.

Type Description
Required consent Users must consent to provide the corresponding information to use your service. Kakao asks permission when a user logs in with Kakao Account through the Consent screen.

NOTE: Only the profile information can be set as 'Required consent' as a default. If you apply Kakao Sync, you can set more consent items to 'Required consent'.
Optional consent Users can decide whether to consent to provide the corresponding information. Kakao asks consent when a user logs in with Kakao Account. Even when the user does not consent, the user can complete the login. If you use the Requesting additional consent API, you can ask consent again when the user information is needed.
Consent during use Kakao asks permission in the middle of using the service, instead of requesting consent when a user logs in. You can get consent to the scope set as 'Consent during use' by specifying the scope parameter through the Requesting additional consent API. Then, the Consent screen with the scope added as a [Required] is prompted when the scope is required.

Provision after collecting information

If Kakao does not retrain specific user information, the corresponding scope is not displayed on the Consent screen during Kakao Login and you cannot retrieve the user information by requesting APIs that provide user information.

If your service must obtain consent to certain user information, set its scope to 'Required consent' and select the 'Provision after collecting information through Kakao Account' option (Provision after collecting information in short). Then, Kakao asks the user to input the data through the Consent screen during the Kakao Login process, and the user must consent to provide the information to complete Kakao Login, which prevents required information from missing consent.

This option can also be applied for the scopes set as 'Optional consent' or 'Consent during use' along with the Requesting additional consent feature for the case that a user has not consented through the Consent screen when the user attempts to log in. Then, Kakao requests permission when the information is needed during the use of the service.

Here is a sample screen that requests a user to input additional information.

Message asking to input additional information

This option is not applicable for the following scopes:

Consent Item Scope ID Note
Profile Info(nickname/profile image)
Nickname
Profile image
profile
profile_nickname
profile_image
User's profile information is automatically input when a user logs in with Kakao Account.
Phone number phone_number Kakao provides a phone number by obtaining it from the one saved in Kakao Talk, not by collecting it separately.
For users who do not use Kakao Talk, you must collect their phone numbers separately in your service if phone numbers are required.

Consent items for personal information

This table shows the scopes under 'Personal Information' in [My Application] > [Kakao Login] > [Consent Items].

You must enable each scope to use the corresponding APIs. If you want to extend its consent type for a scope, you may need to change the app settings or request additional permission.

When you get permission to set the required consent, you also get permission to set the optional consent.

Consent Item (scope ID) API Available consent type
Profile Info
(profile)
Retrieving user information
Retrieving Kakao Talk profile
Required consent
Optional consent
Consent during use
Nickname
(profile_nickname)
Retrieving user information
Retrieving Kakao Talk profile
Required consent
Optional consent
Consent during use
Profile image
(profile_image)
Retrieving user information
Retrieving Kakao Talk profile
Required consent
Optional consent
Consent during use
Email
(account_email)
Retrieving user information Optional consent
Consent during use

To set to 'Required consent': Biz app, Test app.
Name Retrieving user information None.

To set to 'Optional consent': Consent items for personal information
To set to 'Required consent': Consent items for personal information, Test app.
Gender
(gender)
Retrieving user information None.

To set to 'Optional consent': Consent items for personal information
To set to 'Required consent': Consent items for personal information, Test app.
Age range
(age_range)
Retrieving user information None.

To set to 'Optional consent': Consent items for personal information
To set to 'Required consent': Consent items for personal information, Test app.
Birthday
(birthday)
Retrieving user information None.

To set to 'Optional consent': Consent items for personal information
To set to 'Required consent': Consent items for personal information, Test app.
Birthyear
(birthyear)
Retrieving user information None.

To set to 'Optional consent': Consent items for personal information
To set to 'Required consent': Consent items for personal information, Test app.
Phone number
(phone_number)
Retrieving user information None.

To set to 'Optional consent': Consent items for personal information
To set to 'Required consent': Consent items for personal information, Test app.
Connecting Information
(account_ci)
Retrieving user information None.

To set to 'Optional consent': Consent items for personal information
To set to 'Required consent': Consent items for personal information
Friends List in Kakao Service
(Including profile image, nickname, and favorites)
(friends)
Retrieve list of friends Optional consent
Consent during use

Not allowed to set to 'Required consent'.

IMPORTANT: Allowed to retrieve team members only.
To retrieve all friends, permission is required.
Kakao Talk Channel addition status and details
(plusfriends)
Check Kakao Talk Channel relationship None.

To set to 'Required consent': Connect app to channel.
Shipping information
(shipping_address)
Retrieve shipping address None.

To set to 'Optional consent': Consent items for personal information
To set to 'Required consent': Consent items for personal information, Test app.
Security Event Subscription - None.

To set to 'Optional consent': permission is required.

If a user has not agreed to the consent item required for your service, an error occurs. In this case, request additional consent. For the consent items required for your service, you must set it to 'Required consent'.

IMPORTANT: Providing separated scopes for profile information

From June 25, 2021, we provide the profile information separated as 'Nickname' and 'Profile image'. You can request consent to desired profile information by setting desired scopes respectively. If you create a new app, the separated scopes for profile information are applied to the app. If you have enabled the 'Profile Info(nickname/profile image)' scope, you can continue to use that scope. In this case, you do not need to change the app settings, and there is no change in API response. But if you want to use the new scpes in the existing app, fill out the request form. In this case, the API response may change. Refer to Notice for more details.

Note: Consent items for personal information

Consent items for personal information can only be set as [Required] or [Optional] after obtaining permission via Request for app permissions. Some items can be set after applying KakaoSync. For information on KakaoSync features and implementation, refer to the Prerequisites section.

Consent items for permission

This table shows the scopes under 'Permission' in [My Application] > [Kakao Login] > [Consent Items]. These scopes are allowed to set 'Optional consent' or 'Consent during use' only. If you set a scope to 'Optional consent', users are asked to consent to the scope when they log in. If you set it to 'Consent during use', users are asked to consent when the consent is required in the middle of using your service.

You must enable each scope to use the corresponding APIs.

Consent Item (scope ID) API Available consent type by default
Send message in KakaoTalk (talk_message) Kakao Talk message Optional consent
Consent during use

Not allowed to set to 'Required consent'.

IMPORTANT: Allowed to send messages to team members only. To send to all Kakao Talk friends, permission is required.
Create, retrieve, edit/delete Talk Calendar and events (talk_calendar) Talk Calendar Optional consent
Consent during use

IMPORTANT: Allowed to manage event to team members only. To use event features for all users, request permission.
Create, retrieve, edit/delete tasks in Talk Calendar (talk_calendar_task) Talk Calendar Optional consent
Consent during use

IMPORTANT: Allowed to manage tasks to team members only. To use task features for all users, request permission.

Set Kakao Talk Channel

Connect Kakao Talk Channel

1. Confirm qualifications

Login with an account that has OWNER or EDITOR role for the app, and select [Confirm qualifications] from [My application] > [Request for App Permissions]. You need to check the contents and agree.

Confirm qualifications screen
2. Connect Kakao Talk Channel

If you request to connect to a Kakao Talk Channel from the List of app permissions in [Request for app permissions] > [App permissions], the Connectable Kakao Talk Channels will appear in the list. Select [Connect] with the desired channel to connect.

Kakao Talk Channel connection screen

You can check the connected channels in Manage Kakao Talk Channel connection and disconnect them if necessary.


Note: Connectable Kakao Talk Channels

You can connect Kakao Talk Channels to your app that meet the below conditions

  • Channels with master or manager permissions
  • Channels that have been upgraded to Business channel by verifing business information (The Business channels that are using Kakao services such as Talk Store, registration is required in [Management] > [Apply for business channel] in Kakao Talk Channel Manager Center)
  • Channels with the same business information as the app
  • Channels that are not connected to an app

Create a new Kakao Talk Channel

If you have not created any Kakao Talk Channel, create a new one as follows:

  1. Select '새 채널 만들기(Create a new Channel)' in the Kakao Talk Channel Admin Center. How to create a Business Channel
  2. Set 채널 이름(Kakao Talk Channel name), 검색용 아이디(ID for search purpose), 카테고리(category), and other information. Page for creating a new channel

After creating an new Kakao Talk Channel, request for upgrade the channel to a Business channel. Make sure to log in to Kakao Talk Channel Admin Center with the account that has a Master role of Kakao Talk Channel to be connected to a Kakao Sync service.

For more details, refer to Creating a channel(채널 만들기) in Kakao Business.

Upgrade to Business channel

To use Kakao Sync, you need to upgrade your Kakao Talk Channel to a Business Kakao Talk Channel ("Business Channel") by registering a business registration number. Only the Master account that creates the Kakao Talk Channel can upgrade to a Business channel.

  1. Log in Kakao Talk Channel Admin Center with the Master account that refers to a Kakao Account used to create the channel.
  2. In [채널(Channel)] menu at the top, select the Kakao Talk Channel that you want to upgrade to a Business channel, and then click [신청하기(Apply)] in [관리(Management)] > [비즈니스 채널 신청(Apply Business Channel)]. Kakao Talk Channel Admin Center page for applying Business Channel
  3. For the request, submit the following certificates:
    - Certificate of Business Registration
    - Certificate of Employment or ID card of Representative
    - Registration certificates (only for a mail-order business, medical device sales, and health functional food sales business)

After you request a review, it takes 3 to 5 days in business days for approval. If the information of the channel does not match the documents you submitted, or you have not submitted the required document, your request may be rejected. Refer to Business Channel Request Guide for more detailed information.

Set a primary channel

To allow users to add your Kakao Talk Channel connected to your app when logging in, you must set a primary channel as follows:

  1. Register your service's business registration number to switch your app to a Biz app.
  2. Switch your Kakao Talk Channel to a Business channel so that users can allow to add your Kakao Talk Channel on the Consent screen.
  3. Connect your Biz app and Business channel set in Step 1 and Step 2.
  4. Go to [My Application] > [Kakao Login] > [Kakao Talk Channel], and then click [Select a primary channel].
  5. Select one of the business channels connected to your app as a primary channel to be displayed on the Kakao Login Consent Screen.

You can set only one primary channel among the connected business channels.

How to set a primary Kakao Talk Channel

To change the primary channel, click [Modify] and select another business channel.

Kakao Talk Channel page for modifying channel information

The selected primary channel is displayed on the Kakao Login Consent screen as follows.

How the primary Kakao Talk Channel is displayed on the Consent screen

Check Kakao Talk Channel relationship

To use the Checking Kakao Talk Channel relationship feature, you must get consent from users. To do so,

  1. Go to [My Application] > [Kakao Login] > [Consent Items].
  2. Set 'Kakao Talk Channel addition status and details' to 'Required consent' or 'Optional consent'.
How to set the 'Kakao Talk Channel addition status and details' scope
How can I set 'Kakao Talk Channel addition status and details' to 'Required Consent'?

To set 'Kakao Talk Channel addition status and details' to 'Required Consent', your biz app and business channel must be connected. To see how to connect them, Kakao Sync > Connect app to channel.

Set Simple Signup

To use Easy Signup, set [Status of use] to [ON] in [My Applications] > [Kakao Login] > [Simple Signup] after Set Kakao Talk Channel. When [Status of use] is set to [ON], the Kakao Login consent screen includes the terms of service and you can set the terms of service for your app.

Conditions

You can activate the Simple Signup function to manage the service terms in the following conditions:

After turning Simple Signup to ON, you can add a new service term or manage the registered service term. Note that at least one service term must be registered to add or manage the service terms.

Add a new service term

You can register a new service terms by clicking [Add Terms of Service] in the 'Simple Signup' section.

Dialog box for adding terms

🅐 Term's title: Input the title of service terms both in Korean and English. The service terms in English are used when a language on a user device is set to English. Even though you do not have the English version of service terms, you should input at least the English title with alphabets, numbers, space, and special characters only available to type with a keyboard. (100 characters allowed) 🅑 Term's URL: Input the URL of a web page where service terms can be checked. For optional service Terms, you do not have to input URLs. 🅒 Term's condition: Select either 'Required consent item' or 'Optional consent item'. For the Required consent item, users must consent when signing up. For the Optional consent item, users can consent optionally or additionally according to services. 🅓 Term's TAG: Tags are used to check the consented status by service terms in Check the consented service terms and required to use Getting consent to desired service terms feature. You can add the tags that can be used for actual service development. For tags, you can only enter alphabets, numbers, hyphen(-), and underscore(_). It is recommended to input tags in Keyword_date, Keyword_order of service terms format.

When you register a new service term, the service term is set to inactive status by default. Thus, to use the service term in your service, you must activate the service term by clicking [Activate].

You can preview the Consent screen to be displayed in the actual service by clicking [Preview the Consent screen]. If there is any missing or incorrect information, modify the service terms.

Preview of Consent screeen for Simple Signup

Manage registered service terms

How to manage the registered service terms

🅐 Activate/Inactivate: Select whether to display each service term on the Simple Signup Consent screen. For the service term that you do not want to use, click [Inactivate] on the upper right corner of the service term. Conversely, click [Activate] if you want to make the previously registered service term displayed on the Consent screen. 🅑 Modify: To modify the service terms that have already been registered, click [Modify] on the upper right corner of the service term you want to modify. Only when there is a change compared to the existing registered information, the [Save] button is activated. 🅒 Change order: To change the order of the service terms displayed on the Simple Signup Consent screen, click [Change Order] on the right side of the 'Simple Signup' section, and then select a number for each service term's order. After setting the orders, click [Save].

Dailog box for changing the order of terms

Caution on service terms

The functions related to agreeing to, viewing, and withdrawing from the service terms provided by Kakao Sync Simple Signup are for user expression to the service, not Kakao. Therefore, the Service must recognize that the Service is solely responsible for the management and use of the app's service terms and operate it so as not to cause damage.

The service terms registered in the app must be the same as the actual service terms. If the registered service terms differ from the actual service terms or are false, the app may be restricted from using Kakao Sync.

Transfer personal information overseas

This setting is required for the service that transfers users' personal information overseas.

According to Personal Information Protection Act, Article 39-12 (Protection of Information Transferred Overseas), if your service provides, outsource the processing of, or transfers users' personal information obtained through the Kakao APIs to other countries, you must notify users of the followings in advance and obtain user's consent to transferring personal information overseas.

  • Particulars of the personal information to be transferred
  • The country to which the personal information is transferred, transfer date and method
  • Name of the entity to which the personal information is transferred (For a corporation, the name of a corporation and the contact information of the person responsible for the management of information)
  • The purpose of using personal information by the entity to which the information is transferred and the period of retaining and using personal information

Transferring personal information overseas means the following cases.

  • If a domestic company (in Korea) intends to transfer user information stored in Korea to a third country.
  • If an overseas company (outside Korea) intends to retrieve, store, or process the user information stored in Korea.

If your service corresponds to either of the cases above, you must register the information related to the transfer of personal information overseas.

How to register information related to the transfer of personal information overseas
  1. Go to [My Application] > [Kakao Login] > [Transfer of Personal Information Overseas].
  2. Click [Register Information].
  3. Enter the required information.
    🅐 Country where personal information is stored: Enter the country where personal information is transferred to.
    🅑 Corporation name (company): Enter the name of a corporation to which the personal information is transferred.
    🅒 Contact: Enter the contact information such as email or phone number of the person responsible for the management of information, or customer center URL.

After registering the information above, the 'Consent to the Transfer of Personal Information to Foreign Parties' item is included as a Required item in the Consent screen. Users can see the detailed information which is registered in [Transfer of Personal Information Overseas] by selecting [view more] and consent to the transfer of personal information overseas.

The 'consent to the transfer of personal information to foreign parties' item displayed on the Consent screen

Set unlink callback

The Unlink callback is an optional function to send you a callback in the following situations:

  • Users unlink their accounts with respective service apps in [Use Your Account] > [Manage Connected Services] on the Kakao Account page or in [Settings] > [Kakao Account] > [Manage Connected Services] on the Kakao Talk application.
  • Users have not completed a signup process.

To use this feature, you must designate a callback URL to receive unlink callbacks. Ensure that the unlink callback address only supports HTTPS over 443 port due to security issues because the request includes a Service user ID.

How to register unlink callback
  1. Go to the [My Application] > [Kakao Login] > [Unlink], and click [Register Unlink].
  2. Set a callback URL to receive and process callbacks that are sent when users request to unlink from your app.
    🅐 Domain: Input a site domain used to receive callbacks. The domain for unlink callback supports HTTPS only.
    🅑 Method: Select a method to request callbacks between GET and POST.
    🅒 Callback: Input a path used to receive callbacks.
  3. Implement a function to receive and process the callback request that the Kakao server has made by referring to Unlink callback.

After setting the unlink callback, you can see the detailed callback information under 'Unlink callback settings' and 'Enabled' in 'Status' as follows:

How to change unlink callback

You can 🅐delete or 🅑modify the registered unlink callback information.

You can also disable the unlink callback function for a while. To disable this function, click 🅒[Set] in 'Status' and then select the [Disable] option in the Activate Callback dialog. Only the Owner or Editor account can disable this function.

Note

Kakao may disable the unlink callback function that your service has enabled in the following cases: - If your service does not respond to the unlink callbacks - If all callbacks are caused by the errors In either case, Kakao notifies the fact of you and yourr team members with some advice and changes its status to 'Paused'.

If you want to activate the unlink callback function, modify the way how your service implements the unlink callback by referring to the email sent from Kakao Developers, and then activate this function by selecting [Set] > [Enable].

Depending on whether to use the Unlink feature in your service, the buttons on the Manage Connected Services page are differently displayed to users. See Disconnect vs. Delete All Data.

Manage user properties

To store user data required for your service, add a custom user property. User property refers to a function to store some of service information in the Kakao platform. Kakao does not access and store the data in the service server but provides a feature to store some of user information on the Kakao platform and retrieve the information through the Retrieving user information API as needed.

To register property keys,

  1. Go to [My Application] > [Kakao Login] > [User Properties].
  2. Click [Add property key], and specify its name. You can add up to 5 property keys more for each service besides the reserved keys.
User Properties page

🅐 Account information: Shows the ID, linked status, and linked date of the team members who are linked to your app. 🅑 Reserved property: Shows the property keys assigned by default. You cannot use the reserved property keys as a property key name. 🅒 User property: Shows the custom user property keys that you added. The property values are displayed in the column of the corresponding team member.

Policy change on the user properties related to user profile

After May 12, 2022, Kakao Account's profile information is reflected in real time to the property keys: 'profile_image', 'thumbnail_image', and 'nickname'. Thus, you cannot update the user profile saved in a service through these property keys by calling the Storing user information API. For more details, refer to Notice. If your service needs to keep using these property keys, contact us via DevTalk.

To update the user information, call the Storing user information API by passing the added or checked property keys with the user data.

To check the updated user information, call the Retrieving user information API by referring to each development guide.

Enhance security

When you use a REST API, you can use a Client secret code to enhance security.

Client secret page

To use this feature,

  1. In [My Application] > [Kakao Login] > [Security], click [Generate code], then a client secret code is generated.
  2. Click [Set] in Activation state, and change the state to 'Use'.
  3. When requesting the Getting tokens and the Refreshing tokens APIs, add the issued client secret code with the client_secret parameter.

You must add the client_secret parameter if 'Client Secret' is activated on this page. Otherwise, the token is not issued from the authorization server.

Caution

We highly recommend regularly changing the Client secret code every two years or less.

Note: How to change Client Secret for service in operation
  1. Change [Activation state] to [Disabled].
  2. Click [Reissue] to get a new Client Secret code.
  3. Apply the new Client Secret code to the service.
  4. Change [Activation state] to [Enable].

Security Event

To use Security event subscription, you need to set it in [My application] > [Kakao Login] > [Security Event].

Security event page

Select [Set subscription] to enable the feature and set details.

Security event setting

🅐 Activation status: Select [Activate] to enable security event subscription. 🅑 Callback URL: Set a callback URL of your service that receives security event information. The domain for the callback supports HTTPS only. 🅒 Subscribable Events: Select Security event types of each category. ⓐ Categories: Select a desired category. Provided only to the app with permission. ⓑ Types: Select desired security event types.

Below is an example after setting.

Security event setting example

🅐 Click to delete or modify the current settings. 🅑 Click to go to [Security Event Test Tool]. 🅒 Output the activation status and the callback URL. 🅓 Output subscribed events and categories.

Set Logout Redirect URI

This is optional function used for Logout of service and Kakao Account, an add-on feature to Kakao Logout. If you want to use this feature, go to [My Application] > [Kakao Login] > [Advanced] > [Logout Redirect URI] and set Logout Redirect URIs.

Logout Redirect URI page

When you register Logout Redirect URIs, you must comply with the following rules:

  • Logout Redirect URI allows HTTP/HTTPS protocols and 80/433 ports.
  • You must register HTTP and HTTPS protocols respectively as Logout Redirect URI is sensitive to schemes.
  • You can register up to 10 Logout Redirect URIs. If you want to register more than 10 URIs, ask DevTalk.

Refer to REST API guide to see how to leverage this feature.