Design the full transaction path
A successful API response only proves that two systems can communicate. Production integrations also need to handle invalid data, retries, duplicates, permissions, posting failures and support escalation.
The integration design should define which actions can happen automatically, which require review and what the business sees when something goes wrong.
Reconciliation is part of the solution
Teams need a practical way to trace what was sent, what was accepted, what failed and what remains outstanding. That visibility reduces support effort and improves trust in connected systems.
- Use stable external identifiers.
- Log business-readable errors.
- Separate retryable failures from blocked records.
- Give users a clear reconciliation path.