Changing unit price after AP invoice has been created
We realized the unit price was incorrect after the PO, GR and AP invoice was already created. Is there a way to update the unit price on the item?
This is not possible, you have to reverse transaction by AP Credit memo and recreate new transaction. If you have FIFO valuation method then you can change price through Inventory Revaluation but in that case your AP Invoice amount remains unchange.