Inventory management software for distributors

Give every team the same stock picture

A wholesale customer asks for 100 units while online orders draw from the same stock. Your salesperson needs to know what is available, not what the last spreadsheet said. Convexity brings stock balances, order commitments and incoming purchases together, so sales, purchasing and the warehouse share one record.

Manage wholesale and ecommerce orders in one place

Do you sell through Shopify, Amazon, Walmart or Faire as well as wholesale accounts and retail? See channel orders and wholesale orders together, with customer details, items, quantities and pricing, and separate wholesale and retail price lists where needed. During onboarding, we set up the connections and stock-update rules for your channels.

On hand, reserved, available and on order

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  On hand: stock recorded in the system. Reconcile it with physical counts. A recorded balance is not proof that every unit is sellable.

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  Reserved: stock committed through the reservation workflow. It stays on hand until the relevant stock movement occurs.

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  Available: in Convexity stock balances, on-hand quantity minus reserved quantity. Channel-specific availability may need extra rules for holds, locations or buffers.

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  On order: remaining stock-unit quantities on open warehouse-stock purchase orders, after quantities received. Draft and factory-direct purchase orders are not counted in that warehouse on-order total.

Example: 100 on hand is not 100 available

In this example, 30 of the 100 units on hand are reserved, leaving 70 available. A purchase order has another 50 units due. The table shows what changes when you receive 20 of them, assuming no other stock movements.

From customer order to supplier purchase

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  Manage sales orders: bring customer, delivery, item and pricing details together. Stop rebuilding each order from emails and spreadsheets.

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  Know what you can promise: see stock on hand, quantities committed to orders and incoming purchases before you accept another order.

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  Coordinate warehouse work: connect receiving, locations and fulfillment records to the orders and stock your office team sees.

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  Plan replenishment: compare demand forecasts, stock and supplier lead times to find shortages and excess inventory.

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  Prepare purchases: review suggested quantities, adjust the buy and create purchase orders for your suppliers.

Plan replenishment by item and supplier

A stock balance shows what you have. It does not show whether it will last until the next delivery. Convexity combines demand forecasts with available inventory, incoming purchases and your buying rules. You review replenishment in one place.

Keep QuickBooks Online for accounting

QuickBooks Online can remain your accounting system. Convexity has a two-way integration that reads connected accounting records and writes invoices back. Sales orders, stock and purchasing are managed in Convexity. Sales-order and invoice workflows are separate. Your team agrees when an order becomes an invoice.

Already using another ERP? You can also scope forecasting and purchasing support alongside your existing ERP when a supported connection is available. We confirm the edition, records and approved writeback actions before rollout.

Create orders and reports with your AI assistant

Connect Claude, ChatGPT or Gemini to Convexity through MCP. Ask which items are understocked, build a report, create items or prepare purchase orders using your business data. Actions are limited by the access and tools enabled for your team.

See AI order creation, dashboards and supplier workflows

Is Convexity a fit for your distribution business?

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  You are a small or mid-size distributor or product brand selling physical goods through wholesale, retail or ecommerce.

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  Your team spends too much time entering orders, checking stock across systems or assembling purchasing reports.

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  You want to handle more orders with your existing team while reducing avoidable stockouts and excess inventory.

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  You need a team that will work through your pricing, purchasing and fulfillment process with you. Specialist manufacturing, traceability and accounting requirements are assessed separately.

Get implementation help and direct support

You provide your data and explain how the business works. The Convexity team handles data preparation, imports and integration setup, then works through real orders and purchasing decisions with your team. Regular sessions with founders and engineers give you a direct route to the people building the product.