A customer brings something back — Rundoo returns let you pull up the original Sale, pick the lines coming back, set a quantity and reason, and refund to any tender method.
In the POS mode, open the Customers left tab, find the customer, then click the sale they're returning from — the Return button sits in the action cluster on the completed-sale detail.
Most returns start from a past sale — Rundoo calls this a linked return, and it's the recommended path because the lines, prices, tax, and original tender all pre-fill from the original receipt. The cashier pulls up the sale and marks which lines are coming back.
If your store has no-receipt returns enabled in admin, the cashier can also ring up a return from a fresh cart by entering a negative quantity — no original sale required. Today's price is used (Rundoo has nothing to look up), and the cashier trusts what the customer says they paid.
Two reliable routes to find a past sale when the customer doesn't have their receipt:
💡 If you can find the sale, use the linked path — pricing and tender pre-fill correctly and the customer's books line up cleanly. The no-receipt path is for cases where you genuinely can't produce the original receipt.
When the customer doesn't have their receipt and you can't find the original sale, Rundoo has a second path: start a fresh transaction and enter a negative quantity. Rundoo flips the transaction into a return as soon as the totals go negative.
Admin setting that enables it. In the Admin mode, the Security left tab, under Linked returns, turn Skip linked returns in a new or draft transaction on. When it's off (Rundoo's default), every return has to start from an original sale — no negative-quantity shortcut. See Return policy for the full admin walkthrough.
Ringing one up. With the toggle on, in the POS mode, the Transactions left tab, start a new transaction, attach the customer if you know them, search for the product, and set the quantity to a negative number. The cart line shows a Return pill, the subtotal and sales tax flip negative, and the Sale button in the action cluster becomes Return.
Pricing. No-receipt returns use today's price — since there's no original sale to look up, Rundoo refunds the product at its current price (minus any active discount). If the price has changed since the customer bought, the linked path is the honest one; the no-receipt path is for when that's not possible.
Finishing up. Click Return to open the tender picker — the screen header switches from Sale to Return, and the primary button at the bottom reads Refund $X.XX instead of Charge $X.XX.
⚠️ Rundoo's no-receipt path is a trust exchange — the cashier is taking the customer's word for what they paid. Set a store policy for when it's OK (unopened item, known customer, under a dollar threshold, etc.) and brief cashiers to use the linked path whenever the sale can be found.