If a SCIM connection is configured via an OAuth 2.0 provider, an access token is requested via a configured URL. This usually contains an expiry time. There are OAuth 2.0 providers for which it is not possible to configure a token lifetime (GITLAB). In order to still be able to connect the system, a runtime of 5 minutes is assumed for OAuth tokens without an expiry time. After this, a token refresh routine is compulsory.