SAP Message VN350 - Object type & is not assigned to application &

Diagnosis
You have entered a business object type (&V1&) which is not assigned toapplication &V2&.

System Response
In system table T681Z a business object type is assigned to both theheader and the item of the application document of application &V2&.You can enter any of the object types from the business objectrepository, which have a key structure consistent with that of one ofthe object types.

Procedure
You can see all the permitted object types by pressing the possibleentries pushbutton.