Permission Denied: Code 403

This error typically occurs when your application or service account does not have the required permissions to access a resource in Google Cloud or Firebase.

Code 403 Error Message

You may encounter this error due to one or more of the following reasons:

• Invalid or misconfigured service account JSON file
• Insufficient permissions assigned to the service account
• Missing or incorrect IAM roles for the service account
• API not enabled in the Google Cloud project

Do the following to fix this error:

• Check Your Service Account JSON File

  Ensure you are using the correct service-account.json file and that it is not corrupted or expired.

• Verify IAM Roles and Permissions

  Make sure the service account has the necessary roles like Editor, Owner, or other specific roles required for your use case.

• Enable Required APIs

  Go to the Google Cloud Console and ensure all necessary APIs are enabled for your project.

• Regenerate the Service Account Key if Needed

  If you suspect the key is invalid, generate a new one and update your application configuration accordingly.

Always Use Least Privilege Principle

When assigning IAM roles to your service account, follow the principle of least privilege—only grant the minimum permissions necessary for the task. This not only reduces the risk of misconfiguration but also enhances the overall security posture of your app.

If you continue to experience issues, consult the Google Cloud IAM documentation or contact FlutterFlow Support for further assistance.