Microsoft Azure Active Directory services provides authentication to your application.
User provisioning may fails with this message:
Description The User ‘…’ will be skipped due to the following reasons: 1) This object does not have required entitlement for provisioning. If you did not expect the object to be skipped, update provisioning scope to ‘Sync all users and groups’ or assign the object to the application with entitlement of provisioning category
This message is displayed, because there is a problem with the user assignment record stored in Azure AD. To fix this issue, un-assign the user (or group) from the app, and re-assign it again.