I'm trying to create a Saved Search for All Open transactions in a certain year that have a G/L Impact. Does anyone have the criteria for a Saved Search that will show all open transactions or just let me know which transactions have a G/L impact?

exclude SO and PO they are non posting transaction

Right but there are more non posting transactions then that which show up on transaction saved searches. i.e. estimates, opportunities, inventory counts, bin transfers, etc...

Add criteria Posting = Yes