Convexity connects Amazon, Walmart, TikTok Shop, Whatnot, BigCommerce, Shopify and QuickBooks Online so your team runs stock, orders and purchasing from one place.
The point of connecting all these systems is that your team works in one place. Today a distributor selling on four channels updates stock in four admin panels, copies orders into a spreadsheet, and keeps invoices in yet another system. Every copy is a chance to oversell, under-order or bill the wrong amount. Convexity reads from each system, keeps one stock record and one order list, and writes the result back, so nobody has to repeat the same change in several places.

One record instead of one per channel
Every sales channel draws from the same stock pool. Say you hold 40 units of a SKU and sell 3 on Amazon: Convexity counts 37 available and that is the number Shopify, Walmart and your wholesale team see. Orders from every channel land in one list, so purchasing plans from total demand rather than from whichever store someone checked last.
Two-way: we read and we write back
A one-way import only gives you another report. Convexity reads products, orders and stock from each connected system and also writes changes back to it. On Amazon and Shopify, stock levels and prices set in Convexity are pushed back to the channel, so you change a number once instead of logging into each store.
You stay in control of what changes. Before go-live we agree, system by system, what Convexity is allowed to update. Each write-back can be switched on or off per system, and incoming changes can wait for a person on your team to review them before they update your records.
Integrations available today
| Integration | What it does in Convexity |
|---|---|
| Amazon | Orders and stock come into Convexity, mapped to your SKUs. Stock levels and prices are written back to Amazon. |
| Shopify | Products, variants, customers, orders and stock by location come in. Stock levels and prices are written back to Shopify. |
| Walmart | Walmart orders and item data sit next to your other channels when you plan what to buy. |
| TikTok Shop | TikTok Shop orders draw from the same stock record as the rest of your business. |
| Whatnot | Live-selling orders land with the rest of your orders, so stock stays right after a show. |
| BigCommerce | Products, orders and stock from your BigCommerce store. |
| QuickBooks Online | Stays your accounting system. Two-way connection, with invoices written back. |
| Claude, ChatGPT and Gemini | Connect through MCP to ask about stock and prepare orders, limited to the permissions you set. |
Using another system?
ERPs, retailer EDI, shipping tools and email order intake are scoped per customer during onboarding. Tell us what you run and what should happen when an order comes in, stock changes or a purchase is approved, and we will tell you plainly what it takes to connect.
Frequently asked questions
Product overviews and guides
Start with your workflow
Bring one inventory, purchasing or order-management problem. We will map the required data, demonstrate the relevant workflow and identify what needs configuration or further validation.
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