Hi,
I made a mistake looking at the wrong incompl. procedure. From ME23N, Shipping tab of items section, i picked delivery type & for this del type, i found the incomp. procedure against it from VUA4 Tcode.
Now from OVA2 Tcode, i removed status group for correct incom. proc and field.
Issue - Routing info(LIKP-ROUTE) was the missing piece. Maintaining it, fixed the issue.
Thanks
Aspire