NOTE : I have gone trough Q& A relating to PO release strategy , but niether near to my issue nor resolved.
I configured PO release strategy by Editing characteristics, Class, Groups, Codes, Indicator, Release strategy.
* Used CEKKO -- WERKS, EKGRP, NETWR(3 characterstics)
* Values tab grayed out during characteristic creation itself.
* Other existing strategies, Codes, Groups were removed.
Still i couldn't find Release strategy in PO header.
Using ME28/ME29N also didn't worked. ERRORS:
Initially: NO Purchasing Document found. Couldn't find release strategy.
ISSUE: Values in classification tab are not being grayed out, box are highlighting in RED.(See snap shot)untitled.png