Map identities and fields
Choose stable identifiers and define how records match. Document units, currencies, time zones and fields that cannot be represented in the destination.
Describe event behavior
Decide what triggers an update and what happens when events arrive late, twice or in the wrong order. Separate acknowledging receipt from completing the business action.
Design the exception queue
Make missing products, invalid customer mappings and rejected updates visible. An operator needs enough context to decide whether to repair, retry or cancel.
Plan reconciliation
Compare source and destination records on a defined basis. Include returns, cancellations and partial fulfillment in acceptance checks, not only a new successful order.