Selling Products in Multiple Units: Pieces, Boxes, and Cartons — All From One Product
Your customers buy water by the bottle and by the crate. Paracetamol by the strip and by the box. Nails by the piece and by the kilogram. Learn how multi-unit products let you sell in any unit while stock always tracks accurately in the background.
Every retailer and wholesaler in Ghana faces this challenge: you buy products in one unit and sell them in another. You purchase a carton of 24 bottles of water, but customers buy individual bottles. You stock a box of 100 sachets of pure water, but you sell them in bags of 20 or individually.
The Multi-Unit Problem
Without proper multi-unit handling, businesses resort to ugly workarounds:
These workarounds cause daily frustration, inaccurate stock, and lost revenue.
How Multi-Unit Products Work in SyncBooks
SyncBooks solves this elegantly with multi-unit conversion. Here is the concept:
One Product, Multiple Units
You create a single product — say "Voltic 500ml Water" — with a base unit of "Bottle." Then you define additional units with conversion factors:
That is it. One product, three selling units, all mathematically linked.
Per-Unit Pricing
Each unit gets its own selling price. This is crucial because carton pricing is not simply bottle price multiplied by 24 — bulk buyers expect a discount:
You set prices per unit independently, giving you full control over your margins at every level.
Per-Unit Price Tiers
Taking it further, SyncBooks supports price tiers per unit. This means you can offer volume discounts within each unit type:
Wholesale customers automatically get better pricing as they buy more, and your POS calculates it without cashier intervention.
How the POS Shows Unit Picker
When a cashier adds a multi-unit product to the cart, SyncBooks POS displays a clean unit picker:
1. Cashier scans or searches for "Voltic 500ml"
2. A unit selector appears showing: Bottle | Pack | Carton
3. Cashier taps the correct unit
4. Price updates automatically based on the selected unit
5. Quantity is entered and added to cart
The process takes seconds and eliminates mental math entirely. No more calculator at the counter.
Stock Always Tracks in Base Units
This is the key insight: regardless of which unit you sell in, stock always tracks in base units (bottles in our example).
Your stock report always shows a single, accurate number. No confusion between "carton stock" and "bottle stock" — there is only bottle stock, and the system handles the math.
Practical Examples
Example 1: Nana's Pharmacy
Nana sells Paracetamol in three units:
She purchases from her supplier in boxes (100 tablets each). When she receives 50 boxes, SyncBooks adds 5,000 tablets to stock. Throughout the day, customers buy individual tablets, strips, and occasionally full boxes. Stock always reflects the true tablet count.
Example 2: Kwesi's Building Supplies
Kwesi sells nails in:
He also sells cement in:
At his POS, a contractor buying a pallet of cement and 3 boxes of nails gets served as quickly as a homeowner buying 2 bags and a pound of nails.
Example 3: Afia's Wholesale
Afia distributes soft drinks:
Her POS cashiers handle walk-in customers buying bottles and wholesale buyers purchasing layers, all from the same product catalog with no confusion.
Setting Up Multi-Unit Products
In SyncBooks, setting up multi-unit products is simple:
1. Create or edit a product
2. Set the base unit (the smallest unit you sell in)
3. Add additional units with their conversion factors
4. Set selling prices for each unit
5. Optionally add price tiers for volume discounts
The product is immediately available in all units at your POS, on invoices, and in purchase orders.
Benefits Summary
Ready to Simplify Multi-Unit Selling?
If you are managing multiple product entries for the same item in different units, or your cashiers are reaching for calculators during checkout, it is time to try multi-unit products in SyncBooks. Start your free 14-day trial and set up your first multi-unit product in under a minute.