Tell me about a time when quantity or price differences are paid without resolution. What did you do?

I first confirmed the facts and contained the immediate impact. Next, I reviewed the PO, GR, invoice, and approved variance record and coordinated the action to compare the purchase order, goods receipt, and supplier invoice. After verifying the result, I summarized the root cause, preventive control, owner, and follow-up plan so the issue would not recur.