Hi
If you want to post in Copa at pgi, you would require the GL to be cost element. But normally Cogs (gbb-vax) is not a cost element
So using a different account modifier in OMJJ as say, ZAX , you can trigger a different GL if you wish
Please close your thread once resolved. http://scn.sap.com/community/support/blog/2013/04/03/how-to-close-a-discussion-and-why
Ajay M