Notice: Over the next few months, we're reorganizing the App Engine documentation site to make it easier to find content and better align with the rest of Google Cloud products. The same content will be available, but the navigation will now match the rest of the Cloud products.

As PHP version 5.5 is no longer supported by the community, we strongly recommend new apps use the PHP 7+ runtime.

\google\appengine\runtime\OverQuotaError

Thrown by APIProxy calls when they have been blocked due to a lack of available quota.