Total control

Your inventory always balanced, in real time

Know what you have, how much it's worth, and where it is at every moment. Every sale, purchase, and adjustment updates your stock instantly, with no spreadsheets or blind counts.

Lumon's Inventory module is the heart of your operation: it records each product with its SKU, cost, price, and stock, and keeps quantities exact at all times. It's built for business owners who sell across several channels and no longer want to discover a shortage when the customer is at the register.

Catalog

A product catalog that grows with you

Add items with SKU, barcode, category, unit of measure, cost, and sale price. Organize by families, brands, and attributes like size or color to find everything in seconds.

  • Create simple products or ones with size, color, and format variants
  • Assign categories, brands, and tags to filter instantly
  • Define units of measure and conversion factors (box to unit)
  • Import your full catalog from Excel or CSV in one step
Stock

Stock that updates itself with every movement

Every point-of-sale sale, received purchase, or transfer deducts or adds stock automatically. Forget subtracting by hand: the number you see is the real number.

  • Deduct stock automatically with every sale or invoice
  • Record entries when you receive supplier purchases
  • Adjust stock for shrinkage, theft, or counts with a required reason
  • Check availability on the spot before committing to a sale
Stock ledger

A stock ledger and traceability for every unit

See the full movement history of any product: who moved it, when, and why. The valued stock ledger tells you how much capital you have tied up in the warehouse.

  • Review the ledger of ins and outs product by product
  • Value your inventory by average cost or last purchase
  • Track lots and expiration dates on perishable products
  • Export the ledger for your accountant or an audit when they ask
Counts

Physical counts without closing the business

Schedule cycle or full counts and capture actual stock with your phone. Lumon calculates the differences and generates the adjustment with one click, keeping a record of everything.

  • Run physical counts by scanning with the mobile app
  • Compare theoretical stock against the real count automatically
  • Generate inventory adjustments backed by evidence
  • Count by zone or warehouse without stopping sales

Everything included

Average cost

Calculate your inventory cost in real time with every purchase you record.

Multi-variant

Handle sizes, colors, and formats under one parent product.

Bulk import

Upload thousands of items from Excel without entering them one by one.

Lots & expiration

Track expiration dates and sell what expires first.

Adjustments with a reason

Every manual movement is recorded with a cause and the person responsible.

Valuation

Know how much money you have sitting in the warehouse at any moment.

Frequently asked questions

Stop guessing how much you have in the warehouse

Try Lumon and keep your inventory balanced, valued, and in real time from day one.

More in Inventory & purchasing

lumon

One app to run your whole business.