Overcoming Common Pitfalls in NetSuite + Shopify Integration

The NetSuite + Shopify integration that works at $2M in online revenue often breaks at $8M.

Not because the platforms change. Because the volume exposes decisions that were made at setup without enough thought about where the business was going.

Four questions worth settling before configuration starts:

Where does inventory of record live? Most businesses default to Shopify. That's fine at one channel. Once you're selling across Shopify, wholesale, and a third-party marketplace, you need one authoritative inventory number and it needs to be NetSuite.

How are returns handled end-to-end? Shopify makes returns easy for customers. Getting that return back into NetSuite with the right GL coding, the right inventory adjustment, and the right customer credit is a separate problem the integration has to explicitly address.

Are your tax configurations aligned? GST, exempt items, and shipping charges need to map correctly across both platforms. Misalignment here creates BAS reconciliation problems that stay invisible until lodgement.

What triggers fulfilment and when does the other platform find out? If NetSuite triggers the pick/pack/ship, when does Shopify update the customer? If Shopify triggers it, how does NetSuite track inventory in real time? The answer determines your fulfilment latency and your customer communications.

Most integration projects that go over scope skipped at least one of these.

Full integration guide in the comments covers common pitfalls, middleware options, and what to check before go-live.

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