SAP Message 6D745 - Object category-assignment Customizing for contract type & not maintained

Diagnosis
A Customizing setting is missing for the contract type you havespecified (Assignment to object type).

System Response
The system has cancelled the processing.

Procedure
Make sure you have selected the correct contract type. If so, informyour system administrator.

Procedure for System Administration
Assign a contract type to the requested object type in Customizing.