In plain English
A clear explanation of how modern point-of-sale systems create and send digital receipts, from scanning items to final delivery.
Key points
Point 1
The POS records items, totals, taxes, tender information and transaction identifiers.
Point 2
Receipt templates convert selected fields into a customer-facing record.
Point 3
Delivery may be handled by the POS vendor, the merchant or another service.
A point-of-sale system does more than print or email a receipt. It records the sale, assigns identifiers, communicates with payment and inventory services, applies receipt-template rules and places a delivery request into another system.
1. The POS builds a transaction record
As items are scanned or entered, the POS creates line items with quantities, prices, discounts and tax treatment. It also records the register or device, cashier or channel, store, time and transaction identifier.
2. Payment status is attached
The payment terminal or online checkout returns an approval, decline or pending result. The customer-facing receipt normally shows only a limited payment description, while the processor and merchant systems retain separate payment references.
3. A receipt template selects fields
The merchant configures which transaction fields appear, how taxes and discounts are displayed, what return text is included, and whether loyalty balances, survey links or promotional material are added.
4. The customer chooses or supplies a delivery route
The POS may offer print, email, SMS, app delivery or no receipt. Contact information can come from checkout entry, a customer account, a loyalty profile or another linked system.
5. Delivery is queued
The POS or receipt provider creates a message job. A queue helps the checkout continue even if email or SMS delivery is temporarily slow. Failed jobs may be retried, logged or presented to staff for correction.
6. Later events create related records
Voids, returns, exchanges, partial refunds and corrected orders should create their own records rather than silently rewriting history. Good systems preserve links between the original sale and later events.
Important system controls
- Unique transaction identifiers.
- Role-based access to resend, void or edit records.
- Logs showing delivery attempts and changes.
- Clear separation between receipt delivery and marketing consent.
- Export and retention controls.
- Fallback options when contact details are wrong or delivery fails.
What a merchant should test
Testing should cover taxes, discounts, split tenders, offline sales, duplicate sends, refunds, returns, gift receipts, accessibility, long item names, multiple languages and failed delivery. A receipt feature is ready only when the difficult cases work as well as the ordinary sale.
Practical checks
- Separate payment processing, sales records and receipt delivery when evaluating a system.
- Test failed delivery, corrected transactions and refunds before launch.
- Limit receipt templates to information customers actually need.