We want to start calculating our period end accruals for AP/PO based on the uninvoiced value for PO?

Summary:

Does anyone else do this, if so is it only possible by using a BIP/OTBI report, or is there another approach possible?   We are using only Expense Items and have the Matching level as 3 way and match option is at Order and Accrue receipt as Period End.

Content (please ensure you mask any confidential information):

Does anyone else do this, if so is it only possible by using a BIP/OTBI report, or is there another approach possible?   

We are using only Expense Items and have the Matching level as 3 way and match option is at Order and Accrue receipt as Period End.