Retrieve valid customer types and payment types from the sales reference endpoints.
Confirm the packages being sold are active with sufficient remaining quantity.
Build an array of receipt objects with sale date/time, customer type, patient or caregiver ID if applicable, and line items (package label, quantity, unit of measure, price).
Submit the array to the sales receipts endpoint, batching multiple receipts per call rather than sending one request per sale.
On API v2, finalize the receipt with the receipts-finalize endpoint (v1 has no finalize/unfinalize step).
Confirm receipts were recorded via the active sales receipts listing endpoint.
Known gotchas
The finalize/unfinalize workflow only exists in API v2; don't assume it's available on a v1 integration.
Retail delivery sales use a separate endpoint family from walk-in receipts.
Selling more quantity than a package has available returns an error; re-check package quantity before submitting.
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