Diagnosis
The objects assigned in the document cannot all be assigned to a singleowner's house bank. For example, they belong to different owners.However, one of these objects belongs to a management contract whichdesignates the use of an owner's house bank.

System Response
The system cannot enter an owner's house bank in the document.

Procedure
One possible solution is to not save the document in this form, andcreate a new document for each object.