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The error message indicates that the connection to Zoho failed due to an authentication issue. The error code 9603 suggests that there is a problem with the authentication credentials or the authentication process.
To resolve this issue
- Verify the authentication credentials: Ensure that the Client ID, Client Secret, and Refresh Token are correct and valid. You can obtain these values from the Zoho Developer Console.
- Check the authentication scope: Make sure that the authentication scope is set correctly. The scope should include the necessary permissions to access the Zoho data.
- Validate the redirect URI: Ensure that the redirect URI is correct and matches the one registered in the Zoho Developer Console.
- Check the authentication flow: Verify that the authentication flow is correct. The flow should involve redirecting the user to the Zoho authorization page, where they can enter their credentials and authorize the connection.
Test the connection: Once you have updated the authentication credentials and scope, test the connection again to ensure that it is successful.
Hope this helps. Do let us know if the issue persists