// Module included in the following assemblies:
//
// * applications/quotas/quotas-setting-per-project.adoc

:_mod-docs-content-type: CONCEPT
[id="quota-enforcement_{context}"]
= Quota enforcement

[role="_abstract"]
Track project resource usage, such as compute and storage, and automatically deny modifications that exceed defined limits to prevent quota violations.

After a resource quota for a project is first created, the project restricts the ability to create any new resources that may violate a quota constraint until it has calculated updated usage statistics.

After a quota is created and usage statistics are updated, the project accepts the creation of new content. When you create or modify resources, your quota usage is incremented immediately upon the request to create or modify the resource.

When you delete a resource, your quota use is decremented during the next full recalculation of quota statistics for the project. A configurable amount of time determines how long it takes to reduce quota usage statistics to their current observed system value.

If project modifications exceed a quota usage limit, the server denies the action, and an appropriate error message is returned to the user explaining the quota constraint violated, and what their currently observed usage statistics are in the system.
