APP Creation

• Login to https://portal.azure.com/
• Go to Azure Active Directory.
• Click on App Registration.
• Click on New Registration -> Provide a unique name and other fields based on your requirement and click on Register.
• After Registration, you can find the client id, tenant id, and you have to create a client secret and, copy the value of that, and create a redirect URI.

APP Permissions

• Click on API Permissions.
• Click on Add Permission and select Microsoft Graph.
• Select Application Permissions.
• Give Read permissions to the following: Directory, Files, and Sites.
• Click Add Permission button to add the permissions.
  Note: Some Permissions require Admin Consent.

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NOTE:

• If you are not able to Get the Site Lists on Site Tab, Try the following steps:
• Edit the Application permissions by Read/Write Full Permissions and additionally can check with AccessReview, Application, CrossTenantUserProfileSharing and Policy permissions too.
• Select Delegated Permissions and provide Read/Write Full Permissions to AccessReview, Calender, ExternalItems, Files, Mail, Offline_access, Sites and User.

• After APP creation, select APP and click on the Overview page to get the values Tenant ID and Client ID.
• For Client Secret, click on Tenant ID, Client Credentials and create a secret and copy the value of generated secret.
• For Redirect URI, click on Redirect URI and create one.

• click on Authorization tab and select Access tokens and ID tokens and Save.