Work item xxxxx: Object BKPF method Zxxx cannot be executed.

Hi,

We are on SAP ECC5.0

I copied Object Type BKPF as ZBKPF and Added One

method ZCREATE(BDC program to create FI document) in this object then I added ZBKPF into Delegation

type of Object bkpf. This Custom object method is working fine manually. I added this method into workflow as a background job. Now, it always errored out with

Message Work item 000000391392: Object BKPF method ZFB50LPOST cannot be executed' 'Object with runtime number ' 0' not defined displayed.

Workflow log with technical details is mentioned below.

Background work item created

Execution started automatically

Executing batch work item

EXECUTE_METHOD_OBJECT_SYNC

EXECUTE_METHOD_BOR

EXECUTE_METHOD_BOR

I have create a BKPF instance and passed it to this step. WF_BATCH also have SAP_ALL authorization.

Thaks In advance,

Karen