- 1
build the invoice
add line items as usual. above the totals row is a "promo code" input.
- 2
type the code
otter validates it in real time — checks if it's active, unexpired, eligible for this customer (first-time-only / segment-tagged), and qualifies on subtotal. if valid, the discount drops in as a line.
- 3
save and send
the customer's invoice and email show the discount line; the redemption is logged in otter the moment the customer pays.
tipauto-apply promos don't need a code typed — they apply themselves on every eligible invoice. only manual codes need this step.
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