Diagnosis
You want to create a valuation object for the chosenobject link.

System Response
The system checks the object link settings in Customizing for documenttype &V1& to see if you can link additional objects to links betweenthe document and the linked object.
You make the setting in Customizing, work step
Define document type -> determine objectlink.

Procedure
If you want to create an additional link to the existing object linkyou must first make the necessary settings in Customizing (Work stepDefine document type).