Create App Registration Manually

This procedure describes how to manually add the App registration to the customer M365 tenant including:

Adding Client secret
Associating Microsoft Entra Roles to the application according to table described in Secure Connection using an App Registration
To create the new registration:
1. Login to the Azure portal (portal.azure) with global Admin credentials for the M365 tenant.
2. Click View to the Microsoft Entra ID interface.

3. In the Navigation pane, select Manage > App registrations and then click New registration.

4. Enter the name of the application.
5. Select Accounts in this organizational directory only (Contoso only-Single tenant).

6. Click Register.
7. Click to open the Overview page for the new registration.

8. In the Overview page, Copy the Tenant ID and Application (client) ID value.
9. In the Navigation pane, select Certificate & secrets.

10. Click New client secret to add a new client secret.

11. Enter the Description for the secret and the Expires date (recommended 12 months) and then click Add.

12. Copy the value to clipboard as its required for later configuration in the Service portal.
Copy the value immediately to notepad as it hashed after a short time.
If you use the Application registration to create additional services, a new secret should be created for each new service.
13. In the Navigation pane, select Manage > API permissions.

14. Click + Add a permission and then select Microsoft Graph.

15. Select Application permissions.

16. Type AppCatalog, select AppCatalog.ReadWrite.All (Read and write to all app catalogs), and then click Add permissions.

17. At the following Application permissions following the steps shown above:
Group.Read.All (Read all groups)
Organization.Read.All (Read organization information)
RoleManagement.Read.Directory (Read all directory RBAC settings)
TeamSettings.ReadWrite.All (Read and change all teams' settings)
18. Add the Delegated permission User.ReadWrite.All (Read and write all users' full profiles).
19. Grant admin consent for the new permissions.

All permissions are granted.

20. In the search box in the Menu bar, type Microsoft Entra Roles and administrators.

21. In the Search box, enter the name of the role that is required for the Application Registration creation process according to the table shown in Secure Connection using an App Registration .

22. Click the entry.

23. Click Add assignments.

24. Click No member selected.
25. Search for the name of the Application Registration that you created above, select it and then click Add.

26. Click Select.

27. Click Next.

28. Click Assign.

29. Refresh the screen to display the new assignment.
30. Proceed to Authenticate Manually Created App Registration.