Fabric pipeline activities web activity Oauth error

Hello stiggrr87,

This issue usually occurs when the OAuth connection used by the Web activity is not configured or authenticated correctly.

Recommended checks

• Create the connection first

Create the OAuth connection in Manage connections in Microsoft Fabric, then select that connection inside the Web activity.
Creating the connection directly inside the activity can sometimes cause the OAuth sign-in popup to fail.

• Verify the OAuth configuration

Ensure the following values are correct:

• Authorization URL

• Token URL

• Client ID

• Client Secret

• Redirect URI

Incorrect values will prevent the OAuth flow from completing.

• Check tenant permissions

In some organizations, Microsoft Entra ID policies restrict user consent for applications.
If this is the case, an administrator may need to grant admin consent for the OAuth application.

• Recreate the connection

If the OAuth token expired (for example after password or MFA changes), deleting and recreating the connection usually resolves the issue.

Documentation

• https://learn.microsoft.com/fabric/data-factory/web-activity

• https://learn.microsoft.com/fabric/data-factory/connector-web

These documents explain how Web activity calls REST endpoints and requires a configured authenticated connection.