Plan a payments integration that handles repeated notifications, chargebacks, and reconciliation without confusing billing with receipt.
Index
An approved payment screen should not be the only evidence used to release an order. Provider-ERP integration needs to confirm the event through a reliable channel, associate it with the correct record, and handle repeated or out-of-order messages.
Draw the operation states
Order created, charge issued, payment confirmed, cancellation and refund represent different situations. Document which transitions are allowed and who can perform them. A partial payment or a later chargeback needs to be reflected in the balance and customer service.
What to ask for in the technical proposal
Include validation of the origin of notifications, consultation with the provider when necessary and idempotent processing: receiving the same event twice cannot generate two credits. The history must allow you to understand why the order was released or blocked.
- Unique identifier linking order, billing and payment.
- Treatment of unavailability and retries.
- Queue events that require human review.
- Periodic reconciliation between provider and ERP.
Test differences that affect money
Use the provider's testing environment to simulate approval, denial, and chargebacks. Check gross value, fees and net value according to the settlement model. These concepts should not be mixed into a single field. Upon entry into production, perform a controlled validation with authorization and verification from the finance manager.
Consider operation and maintenance
APIs, certificates, and vendor contracts change. Integration needs monitoring to identify stopped events and someone responsible for safely reprocessing failures. Include maintenance and service in the cost comparison, in addition to implementation.
How to start
Enter the ERP, payment methods, provider and release rules. Quantum9 can map the flow and reconciliation criteria. If there are also manual charges and write-offs in spreadsheets, read the accounts receivable automation guide.