When attempting to reconciling / updating 3 invoices as paid using the lump payment method, I am unable to edit the payment amount. The full amount would have been £530.35 but a partial lump-sum payment was made, the remainder being due to commission which a credit note will be raised against.
Are any of those 3 invoices partially paid, or credited in part? What’s the current outstanding balance on the invoices? Is it £520.35 or is it something different?
The lump payment option will only allow the full outstanding balance to be entered which is why the amount can’t be edited.