How do I correct an invoice that I have already sent but that is not yet settled?

First, tell the client which invoice is being corrected so they do not pay both versions. Record what is wrong, such as the billing name, item, amount, currency, or invoice number, and check whether a payment is already in progress.

Contact Skydo support with the invoice number and the exact correction needed. Ask whether the existing record can be corrected or whether a replacement and updated payment mapping are required. Keep the original and corrected documents together and follow your accountant's advice on the proper correction document. Do not delete the original or change a total just to force a match while a payment is being processed. Send the approved corrected version to your client.