Many stores sell to two kinds of customers from the same shelves. A hardware store serves homeowners at the counter and contractors on account. A beauty supply shop sells to the public and to salons. A food or craft distributor has a showroom and a trade list. If that sounds like you, a POS system for wholesale and retail has to do more than ring up a sale. It must show the right price to the right customer, let trusted buyers pay later, and keep the paperwork straight, all from one set of inventory.
The problem with running two systems
The common workaround is a POS for the counter and a spreadsheet or invoicing tool for trade accounts. It works until it does not. Stock sold on an invoice does not reduce the count at the register, so you oversell. Prices live in two places and drift apart. Customer balances sit in one tool while the sale sits in another, so month-end takes a day. Every manual step is a chance for a mistake, and mistakes with trade customers cost relationships.
What the system needs to do
Price tiers
Assign each customer to a price tier, such as retail, contractor or distributor, and let the system apply it automatically at checkout. The cashier should not need a price sheet. When you change a tier price, every future sale should use it. See wholesale contract pricing for retail customers for how contract prices work.
Quotes before orders
Trade buyers often want a quote, then an order, then a delivery. A quote that converts into a sale keeps the prices and quantities intact and removes retyping.
Credit terms and balances
Offering terms means you must track what each customer owes. You need to see open balances, set credit terms per customer, record payments against invoices and know who is overdue. Our guides on customer account statements and reading an A/R aging report cover the practical side.
Inventory that serves both channels
One pool of stock should serve the counter and the trade orders. Look for purchase orders, backorders when you cannot fill a line yet, and reorder points so popular trade items do not run out. If you are curious how this works across stores, see multi-location inventory management.
Accounting that follows
Credit sales, receivables, payments and purchases need to land in your books without re-keying. Whether the accounting is built in or synced, check how a trade invoice and its later payment are recorded.
A worked example
Picture a plumbing supply shop. A homeowner walks in and buys a faucet at the shelf price. Ten minutes later a contractor, who is on 30-day terms and a trade price tier, buys twenty of the same faucet. At a single register, the cashier looks up the customer, the system applies the contractor tier, the sale is put on account rather than paid by card, and stock drops by twenty. At the end of the month the contractor gets a statement showing the invoices and any payments, and the shop sees the balance on its aging report. Nothing was typed twice. That chain, from price to stock to receivable, is what you are really buying.
Now imagine the contractor wants fifty units and you have thirty. A system with backorders lets you fill thirty now and keep twenty open until the next delivery arrives, instead of cancelling the order or promising stock you do not have. Reorder points then nudge you to buy more of the items your trade customers depend on, before the shelf is empty.
Mistakes to avoid
- Putting trade customers on terms without a credit limit or an overdue process.
- Keeping separate price lists in a spreadsheet that staff must remember to check.
- Selling on invoice from a system that does not touch retail stock counts.
- Importing customers without opening balances, so the first statement is wrong.
- Letting every cashier change prices, rather than limiting overrides to managers.
Setting prices that stay manageable
Keep the tier structure small. Two or three tiers, such as retail, trade and volume, are easier to explain and audit than a different price for every customer. Decide whether tiers are a percentage off retail or fixed prices per item, and write the rule down so a new manager can follow it. Review your cost and margin per tier every few months, because supplier increases quietly erode trade margins when tier prices are set once and forgotten.
Decide too who can override a price at the counter. Most shops allow managers to do it and require a reason, which keeps goodwill discounts possible without letting them become the norm. If a trade customer regularly asks for a better price, change their tier instead of overriding it at every sale, so reports show the real picture.
Reporting you will want
Mixed shops need to see how each channel performs. Look for sales and margin by customer type, a list of overdue balances, your best trade customers by revenue, and stock turn on the items trade buyers use most. These reports show whether wholesale is profitable once you count the time spent chasing payments, and whether terms are costing you more than the extra volume brings in. A clear view of receivables is often what convinces a shop owner to tighten or relax credit.
Questions to ask in a demo
- Show me the same item sold to a retail customer and a trade customer at different prices.
- Create a quote and convert it into an order, then partially fill it.
- Put a customer on 30-day terms and show their open balance and statement.
- Receive a purchase order and show the stock change at the register.
- Export my customer list, balances and sales history.
How Retailer OS handles it
Retailer OS includes price tiers, quotes, customer credit terms, purchase orders, backorders, reorder points and customer receivables in the same system as the register, with a daily sales journal to QuickBooks Online. A customer assigned to a tier gets that tier’s price at checkout, a quote can become a sale, and open balances and statements are tracked per customer. If you also want to sell online, an online store is available as an optional add-on, and you can show trade prices to approved buyers; see selling wholesale online.
Pricing is $99.99 per store and $9.99 per user seat each month, from $109.98, with no platform fee and no cut of your sales. Card payments run on your own Stripe account. There is a 14-day free trial with no card, billing is monthly, and there is no setup or cancellation fee.
Where it may not be enough
Be honest about your needs. If you run a large distribution operation with warehouse management, EDI, route planning or complex contract rebates, a dedicated distribution or ERP system may suit you better. Retailer OS is for store-based retailers who also serve trade customers, not for full-scale logistics. Our guide to POS and inventory for industrial and wholesale supply goes deeper on where that line sits.
Rolling it out without disruption
- List your customers by type and decide the tier each belongs to.
- Clean your item list, with one cost and each tier price per item.
- Import items and customers, then spot-check a dozen trade customers.
- Enter opening balances for customers who owe you, so statements start correct.
- Run both systems side by side for a week, then cut over on a day you can count stock.
Doing this once is far easier than reconciling two systems forever. For help comparing your options, read the best retail POS buyer’s guide, the decision worksheet, or the retail POS system overview. When you are ready, request a demo and ask us to show your trade scenario with your own items.
Last updated October 5, 2026