LSMW Product Group IDOC LOIPGR Does Not have process code

Hello Experts,

I'm using LSMW for migrating Product Group data from legacy system

to SAP. I'm using Idocs for that. However, when I specify the Message Type

'LOIPGR' and basic type 'LOIPGR01', and save, I get an information message 'No

process code could be found for message type LOIPGR'. The partner profile is not

created automatically. When I try to create it in transaction WE20, the message

type LOIPGR is not in the list, and thus I cannot assign a process code for it.

Eventually, I cannot generate the Idoc.

Can anyone please help?

Thanks