- Often your application would work just fine locally but after deploying it the application won't work, a reason for that is that when running locally there is no CPU limit but on Google servers there is a CPU limit, My advice is to deploy your application at night this would enable you to test your application live without interfering the users
- Check your Logs frequently to see if your application throws exceptions to the user, You should strive to a point that no error logs would be displayed at all.
- To delete old entities you can access from "Application Overview" then choose "Data Viewer" and then select the entity click on the top check-box and then click the delete button, once there are no rows the entity would be removed.
- Don't upload an application if you havn't fully tested it before locally.
More tips would be posted in the next posts