Connect POS, ERP and Your Online Shop

A retailer with an established POS or ERP may want to add online sales without rebuilding every operating process. Integration can connect product, stock, order and customer records, but it needs agreed definitions and a clear treatment of failures. A shared dashboard alone does not prove that the underlying records are consistent.

Define who owns each record

List the systems involved and decide which one owns product descriptions, selling prices, available stock, orders and customer preferences. Specify how identifiers and variants map between them. Two systems using the same product name may still refer to different units or stock locations.

Specify the direction and timing of updates

Document which changes travel in each direction and when they are expected to arrive. Consider stock reservations, paid orders, cancellations and refunds. A delayed update should be visible to staff, with an agreed response, rather than silently leaving an inaccurate quantity on sale.

Use stable transaction identifiers so a retried message does not create another order. Decide how errors are reported, who investigates them and how a corrected record is resubmitted. Include a regular reconciliation that compares totals and exceptions between the systems.

Assess technical and operating limitations

An older system may not expose the API or fields the online channel requires. Some information may need transformation, while another function may need a separate module. Ask for a written scope covering supported versions, direction of synchronisation, expected delay and responsibility for ongoing changes.

Budget for implementation, third-party modules, support, training and monitoring alongside the subscription. A low advertised licence price does not describe the full work of maintaining a custom connection.

Protect access and test failures

Limit integration credentials to the permissions required and define how they are changed or revoked. Transfer only the necessary customer information. Review the handling of logs and backups so that routine troubleshooting does not create another uncontrolled copy of sensitive records.

Test a sale, a partial return, a cancellation, a stock adjustment and a connection interruption using agreed test data. Reconcile the results before enabling real orders. Staff should know what to do while a connection is unavailable.

Posify's integration approach

The original article described using DQM to consolidate multiple data sources and connect them with Posify retail, restaurant, service and online operations. Confirm the specific connectors and mapping work for your existing system; the announcement does not establish automatic compatibility with every ERP or online platform.