This is continuation of my previous thread. the issue has not been resolved and needs suggestions.
SRM 5.0 ECS SP15. The issue happens sporadically when SRM SC is created without contract item (catalog/direct mat).
So, when SC is created with above condition, instead of going to sourcing, system directly creates the PO. The only thing I noticed was the SC contained entry in preferred vendor field. there is no custom code on turning preferred vendor to fixed. And this does not happen often.