Wait till you receive the email of form approval by Microsoft.
On the access node, add the iTeamsUseProtectedAPIs additional setting and set its value to 1, as shown in the following table.
For instructions about adding additional settings, see Adding or Modifying an Additional Setting.
Write your email address (it should be a tenant email ID).
In the Publisher name box, write the tenant company name.
In the App name box, write the semicolon-separated app names, such as, App1;App2.
Write the semicolon-separated app ID, such as, 7054f33-74a8-4e75-8fbe-d26987f883dd; 32882231-2ff8-4711-8f75-2c70d9f38277
Write - "The app is used for data protection and information management software applications and products".
Write - "The app is used as a vital extension of the protection native to O365 applications. To provide enhanced data protection to the Microsoft environments, it is necessary to have read access to all the messages in the tenant. This will provide the functionality such as point-in-time recovery, granular restores, and long-term retention".
Select the second option - "It is obvious to any admin installing this app that it will make a copy of Microsoft Teams messages".
Write the tenant directory ID, such as, 22c2134-03ww-43b7-abfe-7879478a67c0.