This is the English briefing. The full Thai guide includes additional examples and checklists. ไทย ↗
Give each sale a persistent unique identifier. Re-sending a queued sale must not create a second order or stock movement.
Define the records and rules
Give each sale a persistent unique identifier. Re-sending a queued sale must not create a second order or stock movement.
Connect the operational workflow
Show the cashier what is stored locally and what still needs synchronization. A local record alone does not confirm a card or bank payment.
Checks before implementation
After reconnection, reconcile totals, payments and inventory. Test interrupted sync, duplicate submission, device restart and conflicts between branches.
Further reading from primary sources
These references support the standards and integration topics discussed. Workflow examples and figures illustrate system design.
Sources checked: 11 October 2026. Confirm current API access and requirements before implementation.