# Maintaining OAuth apps

After you create and register an OAuth app, you can make modifications to the app, change permissions, transfer ownership, and delete the app.

## Links

* [Modifying an OAuth app](/en/enterprise-server@3.22/apps/oauth-apps/maintaining-oauth-apps/modifying-an-oauth-app)

  After creating and registering an OAuth app, you can make changes to it.

* [Activating optional features for OAuth apps](/en/enterprise-server@3.22/apps/oauth-apps/maintaining-oauth-apps/activating-optional-features-for-oauth-apps)

  You can test new optional features for your OAuth apps.

* [Transferring ownership of an OAuth app](/en/enterprise-server@3.22/apps/oauth-apps/maintaining-oauth-apps/transferring-ownership-of-an-oauth-app)

  You can transfer ownership of an OAuth app to another user or organization.

* [Troubleshooting authorization request errors](/en/enterprise-server@3.22/apps/oauth-apps/maintaining-oauth-apps/troubleshooting-authorization-request-errors)

  When obtaining an OAuth token for a user, some errors may occur during the initial authorization request phase.

* [Troubleshooting OAuth app access token request errors](/en/enterprise-server@3.22/apps/oauth-apps/maintaining-oauth-apps/troubleshooting-oauth-app-access-token-request-errors)

  When exchanging a code for an access token, there are an additional set of errors that can occur. The format of these responses is determined by the accept header you pass.

* [Deleting an OAuth app](/en/enterprise-server@3.22/apps/oauth-apps/maintaining-oauth-apps/deleting-an-oauth-app)

  You can delete OAuth apps when you no longer use them.