How do I refund or fix an invoice?

What you can do depends on whether the invoice is still open or already paid.

An open (unpaid) invoice

Open it from the appointment (Edit invoice) or from the Unpaid tab of Money › Invoices & Payments (Edit). You are back in the invoice editor with everything filled in: change services (a pet can have more than one), prices (tap any amount, an add-on's included), quantities, add-ons, products (under Retail, searchable by name, brand or SKU) or the discount, and save. A discount the invoice already carried stays as it was, reason included, until you change it. The invoice keeps its number.

An invoice that opened at check-in for an unpriced service shows an amber Unpriced badge; edit it and set the price.

Delete on an unpaid invoice removes it permanently; nothing was charged.

A paid invoice charged through Woof Pay

1. Find it under the Paid tab and expand the row.
2. Click Refund and confirm. Woof refunds the card in full through the card processor and reverses its own fee.
3. A second, negative invoice appears ("Refund of #1042") and the original gets a Refunded chip. Your revenue nets out on its own; the appointment stays marked as paid, because the visit happened.

Refunds are whole-invoice. Partial refunds are not built yet; for a partial amount, refund and re-invoice the right total. Loyalty points earned on the refunded invoice are taken back. The client gets a refund receipt if payment receipts are on.

A paid invoice taken as cash or another method

Woof does not move money for those, so there is no Refund button. Hand the money back the way you took it, then either Void the invoice (it is removed from revenue) or create a new invoice with the correction.

Small corrections without a refund

A tip entered wrong, a discount you forgot: if the invoice is still open, edit it. Once closed, void and re-create.