Checking Permissions for Office 365 Exchange Online API

To check Office 365 Exchange Online API permissions, do the following:

1. Sign in to the Microsoft Entra admin center.
2. Go to Identity > Applications > App registrations, and select an application.
3. Select API permissions > Add a permission > APIs my organization uses.
4. Select Office 365 Exchange Online API in the list, check its permissions and configure them if needed.