Which Posting tab? You mean the posting button? So then which tab? Which accounts? Which item group? What is the item group on the order causing the issue?
Nope the item group posting is tabular split by module with a posting button to define the posting setup by vendor group etc. So is your posting purely configured by item group or is there a vendor overlay. You are using the demonstration data and therefore the standard cost variance tab should not be set by cost group and all items would have 510310 set for standard cost variance. 510300 set for rounding variance. Then you have the other side on the purchase order tab where you have the fixed receipt price profit and loss accounts.
Either you have not set the system up with the required accounts, or the system is wrong. Assuming you have not modified it then I have to believe the system is correct and you have not setup the required accounts. [:D]
Can you define the names of the item group posting fields you have set?
All the posting fields were set up with the required accounts in the items groups form. Even though the standard costing variance set by the cost group, I am getting this error. The problem with only that item only. If I take another item in that same group, i can able to post the PO.
Remove the cost group posting in the item group variance setup and then post - if it fails it eliminates the cost group, if it posts it shows your cost group posting is not set correctly, so then go to the cost group and hit posting and define the accounts.
Alternatively if the posting is set to the cost group and item group the cost group is not written to the purchase line, I believe the item record is referenced - so does the item actually have a cost group assigned?