If you are using the Account Tracking feature in Fan-out configuration with Identity Manager 4.0.2 or earlier versions, the DirXML-Accounts attribute of the existing users might contain incomplete account tracking information.
For a proper functioning of the Account Tracking feature,
Delete the DirXML-Accounts attribute of the existing users.
Apply the SAP User Management Driver 4.0.2 Patch 1.
Migrate the users to the SAP system to create new account tracking information.