SAP Message /SPE/PO_CHANGE003 - Logical system of APO not maintained in customizing

Diagnosis
The system cannot determine the logical system of APO to get theinterchangeability master data from APO for TPOP supersession process.

System Response
The system raises an error mesage and further processing is stopped.

Procedure
Check the configuration for logical system in Customizing:
Go to Logistics Execution -> Service Parts Management ->
I nbound Process -> Communication/Error Handling ->Assign communication type to Logical system.
Enter 6 as the value for the field sys-type.