Initial situation
In businesses with frequent stock movements and supplier invoices, a posting can look technically valid in the accounting system while still being commercially wrong. During a monthly review, a supplier invoice did not reconcile as expected to the stock flow. A separate document also appeared without the usual goods-receipt relationship. Left unresolved, such exceptions can overstate costs or liabilities, distort gross margin and weaken confidence in management reporting.
Our solution
We challenged the exceptions rather than simply booking around them. We compared supplier documents with inventory movements and asked the client to verify the source-system entries. That review established that one supplier invoice had been created twice and required correction; another apparent mismatch was explained as a price adjustment that correctly had no physical goods receipt. The distinction mattered: one item was an error, while the other reflected valid commercial substance. Both were documented before the monthly figures were treated as final.
Result
The duplicate invoice was identified and corrected before it could continue to distort the accounts, while the legitimate price adjustment was retained with a clear explanation. Management received a more reliable cost and margin picture, and the exercise demonstrated the value of integrating bookkeeping controls with inventory reconciliation rather than reviewing the general ledger in isolation.
