According to the section “Current Limitations...” in this article Azure Active Directory – Personio
the integration with (Azure) Active Directory is currently limited to pure cloud(-only) environments.
Most likely many customers are still running AD onprem and syncing it with Azure AD. In such cases (according to this article: https://learn.microsoft.com/en-us/azure/active-directory/app-provisioning/plan-cloud-hr-provision) the so called Azure AD Connect Provisioning Agent can be used to provision accounts from the HR app to Active Directory which is subsequently synced to Azure AD. Typically there is a second component syncing back email addresses and other attributes to HR.
Are there any plans to implement this functionality?
Cheers,
AZITC