This article answers a common early-stage question from companies preparing a software, integration or modernization project.
What must move between the systems
Start by mapping the information that matters: products, stock, pricing, customers, orders, shipment status and returns. Not every field has the same importance, and not every field should move in both directions.
Questions to clarify early
- Which system owns the product catalog?
- Where is inventory truth maintained?
- Should order data flow one-way or two-way?
- Is pricing managed centrally or channel-specific?
- What should happen when a sync fails?
Timing and process
Some integrations need real-time communication. Others are safer and cheaper as scheduled sync jobs. The right answer depends on stock sensitivity, customer expectations and the operational cost of delay.
Architecture choices
The architecture usually includes API calls, transformation logic, queueing, retry handling, logging and operator visibility. If a platform has weak APIs, middleware becomes even more important.
A practical starting point
Start from one clean operational path, such as product + stock sync or order import, prove it works, then expand to invoices, refunds, customer updates and reporting.