Message SAP WL099 - Error processing work item

Diagnosis
An error occurred in the execution of a method for an object type fromthe Business Object Repository.
The exact error number and the relevant variables are:
Message class/Error number: &V1&
Variables: &V2& &V3& &V4&

System Response
The action was terminated. No changes were made to the work item.

Procedure
Determine the actual cause of the error by carrying out the actionsdescribed in the long text of the error message &V1&.