Found a bug within App Engine? Want to request a feature? The best way to notify Google is to file an issue within App Engine’s tracker, located at: https://code.google.com/p/googleappengine/issues/list .
You can file an issue by clicking the New Issue button in the top left corner of the page:
But before you file a new issue, make sure that someone else hasn’t already filed the same issue. You can search issues by using the search box on the upper portion of the page:
If you don’t want to search, you can browse through the issues by using the dropdown boxes in each header:
Here’s an example of what an issue looks like: