Description:

I am working on integrating Facebook account linking for my CRM project. Specifically, I am implementing the following:

1. OAuth Flows: To authenticate users and obtain access tokens.
2. Graph API Endpoints: For posting text, images, and videos, including combined multimedia posts, using my C# .NET Core Web API.

Problem:

I am encountering the following error during the OAuth process or API calls:

"It looks like this app isn't available. This app needs at least one supported permission."

Steps I've Taken:

• My app is set to Live Mode.
• I have verified the App ID, App Secret, and Redirect URI.
• Necessary permissions have been added and submitted for review in the App Review section.
• Access tokens are generated with the required scopes.

Despite these steps, the issue persists.

Request:

Could anyone help me identify potential reasons for this issue and suggest resolutions? I’d also like guidance on confirming whether all permissions are correctly approved and whether additional steps are needed for production use.

Thank you in advance for your assistance!