APP Creation

• Log in to https://portal.azure.com/
• Navigate to Azure Active Directory
• Click on App Registration
• Click New Registration, provide a unique name and other required fields, then click Register
• After registration, note down the Client ID, Tenant ID, create a Client Secret and copy its value, and set a Redirect URI

APP Permissions

• Go to API Permissions
• Click Add Permission and select Microsoft Graph
• Choose Application Permissions
• Grant Read permissions for Directory, Files, and Sites
• Click Add Permission to apply the permissions
  Note: Some permissions may 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 creating the APP, go to the Overview page to get Tenant ID and Client ID.
• For Client Secret, go to Certificates & Secrets, create a secret, and copy its value.
• For Redirect URI, go to Redirect URI section and create one.

• click on Authorization tab, selectAccess tokens and ID tokens and save.