The Inventory Posting Setup does not exist. Identification fields and values: Location Code='',Invt. Posting Group Code='INVENTORY'

The Inventory Posting Setup does not exist. Identification fields and values: Location Code='',Invt. Posting Group Code='INVENTORY'
Hi
You have a line or lines that has no location. to resolve this issue you have to option
1) Go to the PO and find the line without location and assign location to it. if you have specific location for this item this is the recommended method (in my opinion)
or
2) go to "Inventory Posting Setup" then setup one line with blank "Location Code" and" Inv Posting Group" as "INVENTORY".