In order to generate an access token for a Microsoft resource, one needs to pass the "Resource" value in the token generation request.

Unfortunately, there is no documentation available mapping the Microsoft resources to the Resource URIs for different APIs.

Below are the details of the most common Microsoft APIs exposed on Microsoft Entra ID, along with the other details to generate an access token to those resources.

Resource Name Resource URI Application ID
AAD Graph API https://graph.windows.net/ 00000002-0000-0000-c000-000000000000
Office 365 Exchange Online https://outlook-sdf.office.com/ 00000002-0000-0ff1-ce00-000000000000
Microsoft Graph https://graph.microsoft.com 00000003-0000-0000-c000-000000000000
Skype for Business Online https://api.skypeforbusiness.com/ 00000004-0000-0ff1-ce00-000000000000
Office 365 Yammer https://api.yammer.com/ 00000005-0000-0ff1-ce00-000000000000
OneNote https://onenote.com/ 2d4d3d8e-2be3-4bef-9f87-7875a61c29de
Windows Azure Service Management API https://management.core.windows.net/ 797f4846-ba00-4fd7-ba43-dac1f8f63013
Office 365 Management APIs https://manage.office.com c5393580-f805-4401-95e8-94b7a6ef2fc2
Microsoft Teams Services https://api.spaces.skype.com/ cc15fd57-2c6c-4117-a88c-83b1d56b4bbe
Azure Storage Account https://storage.azure.com/ e406a681-f3d4-42a8-90b6-c2b029497af1
Azure Analysis Service https://*.asazure.windows.net 4ac7d521-0382-477b-b0f8-7e1d95f85ca2
Azure SQL Database https://database.windows.net/ 022907d3-0f1b-48f7-badc-1ba6abab6d66
Azure Synapse Analytics https://dev.azuresynapse.net/ 1ac05c7e-12d2-4605-bf9d-549d7041c6b3
Power BI https://analysis.windows.net/powerbi/api 00000009-0000-0000-c000-000000000000
Common Azure Resources https://management.azure.com
Azure Key Vault https://vault.azure.net cfa8b339-82a2-471a-a3c9-0fc0be7a4093

To Identify for remaining resources, please follow the below steps :

1. Login into Microsoft Entra ID: https://portal.azure.com/#view/Microsoft_AAD_IAM/ActiveDirectoryMenuBlade/~/Overview and click on Enterprise Applications.

2. Filter on Application Type = "Microsoft Applications"

3. Search for your Microsoft Resource and get the Application ID and Resource URI details :