Answer

What's the best way to sync Shopify stock with eBay, Amazon and TikTok Shop in the UK?

Last updated 11 July 2026By MaxInvent Editorial Team

Short answer

For a multi-channel operation, define one operational stock source and explicit data flows for Shopify and each marketplace. MaxInvent has Shopify connector foundations and limited onboarding, so its exact Shopify scope must be confirmed rather than described as an unconditional live two-way integration.

Document which system owns stock and each update direction
Inventory platform becomes master, Shopify becomes another channel
Tune channel buffers from actual risk and sales velocity
Test API timing, retries and failure handling
Lock manual stock edits on channels once cut-over

Define ownership and direction

Decide which system owns operational stock, then document the required Shopify and marketplace record types and directions. Product content, stock, orders, returns and fulfilment may have different owners.

MaxInvent's current Shopify status

MaxInvent has Shopify connector foundations and limited onboarding for agreed scopes. It is not presented as an unconditional live native or two-way Shopify integration. Magento is live. Native Shopify POS is not claimed; MaxInvent's own POS is for trade-counter and cash-and-carry workflows.

Evidence to require before cut-over

Reconcile products, variants, SKUs and Shopify locations.
Test each required data direction with representative records.
Record update, retry, duplicate and failure behaviour.
Test returns and cancellations used by the operation.
Agree a discovery-led migration and rollback plan.

API timing, buffer size and migration duration depend on the connected accounts and data. No universal latency, buffer or fixed cut-over timeline is claimed.

FAQ

More questions, answered

Can't I just use Shopify's built-in eBay and Amazon channel apps?+

For low volume (under ~200 orders a month total across channels), yes — it mostly works. Above that, two problems appear. First, the push is one-way: Shopify → channel. A sale on eBay doesn't update Shopify until the next poll, which can be minutes. Second, Shopify's channel apps have limited support for multi-location inventory, stock buffers, or rule-based sync. At scale, you need a layer above Shopify that can own the multi-channel decision.

If Shopify isn't the stock master, what is?+

Use a system whose documented scope covers your required channels and data directions. MaxInvent can be assessed as the operational stock source, but Shopify is limited onboarding and must be scoped before it is included in that design.

Do I need to move my product catalogue out of Shopify?+

No. Shopify keeps its role as the storefront for DTC traffic and the source of your rich product content (descriptions, images, theme). The inventory platform imports the catalogue via Shopify's API, maps each product to an internal SKU, and uses Shopify as one of many destinations for stock updates. You continue to edit product pages in Shopify.

What's a realistic sync latency I should expect?+

There is no safe universal number because marketplace APIs and retry conditions vary. Ask for dated measurements for the connectors you need, including P95 timing and failure recovery, then test representative fast-moving SKUs.

What about Shopify POS and physical shops?+

Treat Shopify POS as a separate requirement. MaxInvent does not claim native Shopify POS integration; its own POS is focused on trade-counter and cash-and-carry sales tied to operational stock.

Does MaxInvent support Shopify and Magento?+

Magento is live. Shopify has connector foundations and limited onboarding rather than an unconditional live native integration. WooCommerce and OnBuy are roadmap items.

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