PO Archiving -MM_EKKO Error # BA 123

Hi,

I am trying to Archive PO order single lie item. I was able to set up Variant for both Pre-processing and Write.

When I am seeing log for Write I am getting termination with error code # BA123 ( Structure IBCOMP is not known in the ABAP Dictionary). Because of it error # 00-564 (Job cancelled after system exception ERROR_MESSAGE). See screenshot.

Do you know where I am missing step(s)?

Thanks, Rahul Mandale