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How to make an inventory program for your shop or warehouse

How to make an inventory program for a shop or warehouse: what it records, how stock moves, the reports that matter, barcodes, and a ready prompt for Windows.

Fanann Team10 min read
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Quick answer

An inventory program rests on two ideas: an item list where each item has a code, a quantity and a minimum level, and a movement log that is never deleted (receive, sell, adjust, damaged) from which the current quantity is calculated. Add a low-stock alert and a monthly report and the core is complete. Ready-made software suits those who want full accounting; building suits a specific way of storing or pricing. In Fanann you start from the Retail inventory template, change it in plain words, and download a Windows program that works with barcode scanners that type like a keyboard.

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When do I need an inventory program instead of a notebook or Excel?

The clearest sign: the notebook says 12 pieces, the shelf holds 7, and nobody knows where five went or when. A notebook and Excel record only the latest number. An inventory program records every movement that led to it.

Illustration: stockroom shelves with a laptop in front. Controlled stock starts with one screen everybody trusts.Illustration
Illustration: stockroom shelves with a laptop in front. Controlled stock starts with one screen everybody trusts.
  • A customer asks for an item and the salesperson says “I think we have it”, then walks off to check.
  • You learn a popular item ran out after it ran out, not before.
  • One Excel file is edited by three people, each with their own copy.
  • Stock has been sitting for months and you do not know its value.
  • The annual count takes days and ends with gaps nobody can explain.

Two or more of these and it is time. If you are still unsure, read signs your business has outgrown Excel.

What must an inventory program record?

Real screenshot of “Store Inventory”, a Windows program built with Fanann: the product table with codes, categories, quantities and prices, “Low” and “Out” flags, and the new product and export buttons
Store InventoryReal screenshot of a program built with Fanann

Tap the picture to zoom in, then drag to move around it.

Real screenshot of a program built with FanannA real screenshot of an inventory program built with Fanann: the product list with quantities, and low-stock items clearly flagged.
DataExamplesWhy it matters
ItemName, code or barcode, category, unit (piece, carton, kilo)A unique code stops one item living under two names
Two pricesCost price and selling priceTo know your stock value and your margin
Quantity and minimumCurrent quantity, reorder levelThe basis of the low-stock alert
LocationShelf, warehouse or branchCuts search time in a large stock room
SupplierName, mobile, lead timeSo you order early enough
MovementType, quantity, date, who did it, noteThe log that explains every number

How does stock move through the program on a normal day?

Everything that happens in a stock room is one of five movements. A program that handles them well is enough for most small shops and warehouses:

  1. 1
    Receive

    A delivery arrives. Scan the barcode or search by name, enter quantity and cost price. The quantity rises and the program keeps who received it and when.

  2. 2
    Issue or sell

    Goods leave for a sale, a branch or a workshop. The quantity drops and the destination is recorded.

  3. 3
    Return

    Goods come back from a customer or go back to the supplier. Two different movements, so keep them apart.

  4. 4
    Damaged or expired

    Something broke or passed its date. Stock drops with a written reason and shows up in the waste report.

  5. 5
    Count adjustment

    You count the shelf, enter the number, and the program records the gap as an adjustment instead of erasing history.

Which reports are worth opening every week?

ReportThe question it answersWhat you do with it
Items below minimumWhat do I order today?A ready purchase list per supplier
Stock valueHow much money is frozen on shelves?Buying and clearance decisions
Slow moversWhat has not moved in 90 days?Promote, discount or stop ordering
Item movementWhere did these pieces go?Explains any gap in a count
Waste and damageHow much do I lose, in which category?Change storage or order sizes
Count variancesHow far apart are books and shelves?Follow-up and accountability

Six reports are enough. Every extra report nobody opens is one more screen to confuse staff. If your accountant needs the numbers, ask for an export button to a file that opens in Excel.

Should I buy inventory software or build it?

Ready-made inventory software is plentiful, often as part of a full accounting package. That is its strength and its weakness: you get everything, and you pay for and learn everything.

Which describes your situation?

Pick the one that sounds like you to see the advice.

The price of ready-made
  • An ongoing subscription that usually grows with users
  • Many screens you do not need
  • Your business adapts to the software, not the reverse
  • Your data sits with the vendor, in the format they offer
The price of building
  • Your time describing, testing and adjusting
  • You test the hardware and own the backups
  • No phone support from a hardware supplier
  • What you do not ask for will not be there, so define your needs well

Do I need a barcode scanner, and how does it work with the program?

Past a hundred or two hundred items, yes. A scanner cuts the search to a second and prevents picking a similar item by mistake. It is simpler than it looks:

Scanner type
USB that types the code like a keyboard, the common kind
Drivers
Usually none: plug in and it works
Test
Scan into Notepad: a number means it is ready
Items with no barcode
Print your own labels with internal codes

The program keeps a search field always in focus: scan, the item appears, type the quantity, press Enter. For items without a factory barcode, such as goods you pack yourself or spare parts, see printing barcode labels.

One PC in the stock room, or several PCs seeing the same quantity?

Animated explainer: a local database on one PC that works with no internet, next to a cloud database shared between several PCs that needs internet and sign-in.
Animated explainerLocal data on the stock room PC, or cloud data shared by the stock room, the counter and the office.
SituationThe fitting choiceWhy
One stock room, one person recordingLocal databaseWorks offline and needs no sign-in
Storekeeper, salesperson and manager on different PCsCloud databaseThey must see the same quantity at the same moment
Remote warehouse, weak internetLocal with a daily backupRelying on a patchy connection stops work
Two branches exchanging goodsCloudTransfers between branches need one record

Remember that shared data always needs internet. More in local or cloud database and software that works offline.

How do I build the inventory program with Fanann?

Fanann has a ready Retail inventory template: products with codes and quantities, a field where a scanned barcode opens the item, adjustments that leave a history, and stock reports. Open it in Windows Studio, try it inside a Windows-style window in your browser, then ask for what is specific to you.

Inventory program for a spare parts shop

I want an inventory program for a car spare parts shop, in Arabic (right to left) with English. Each item has: name, part number, barcode, brand, compatible cars, shelf location, cost price and selling price, quantity and a minimum level. A search field that is always in focus and accepts a barcode scan or typing a part number or name. Movements: receive from supplier, issue, customer return, return to supplier, damaged, and count adjustment. Every movement stores the user, the date and a note, and movements cannot be deleted. Quantity changes only through a movement. Items below their minimum are shown in red, with a To order screen grouped by supplier. Reports: stock value, items with no movement in 90 days, item movement, count variances, all exportable to a file. Two users: storekeeper and manager, with adjustments reserved for the manager. Backup to a file and restore.

Try it in Fanann

If your items live in an Excel file, say in your request that you want to import them from a file. If what you want is a web system that also opens on a phone, that is a different route, covered in build an inventory management app.

How do I switch to the program without stopping work?

  1. Day 1Clean the item list

    Unify names, delete duplicates and give every item one code. The heaviest step and the most important.

  2. Day 2Opening count

    Count physically and enter quantities as an opening balance movement. Do not copy old notebook numbers as they are.

  3. Week 1Run both

    Record in the program and in your old method together, and compare at the end of each day.

  4. Week 2Minimum levels

    Once you see real movement, set reorder levels for your top fifty items first.

  5. Month 1First cycle count

    Count one category and compare it with the program. A small gap shows the discipline is working.

Before you rely on the programTap an item when it is done. Your progress is kept in this browser.

Key takeaways

  • Never edit a quantity directly: every change is a movement recorded with a name and a reason.
  • A minimum level per item turns the program from a record into an alarm that protects you from stockouts.
  • One PC in the stock room is fine with local data. Several people on different PCs need cloud data.
  • Start with one careful physical count, because software cannot correct wrong numbers you typed in.
  • A barcode scanner saves time and prevents typing errors, provided you test it with your own codes.

Frequently asked questions

How do I make an inventory program for my shop?
Prepare a clean item list with one code per item and define your movements (receive, sell, damaged, adjust). Then buy ready-made software or build your own with a tool like Fanann, starting from the inventory template.
Is Excel enough for inventory management?
For a few items and one person recording, yes. It weakens with several users or when you need a log of every movement and an alert before stockouts, because it keeps the latest number, not its history.
Does an inventory program work without internet?
Yes, when its data sits on the PC itself. In Fanann you choose a local database for one offline PC. If several PCs must see the same quantity, you need a cloud database and internet.
Which barcode scanner works with the program?
One that types the code like a keyboard, as most USB scanners do. Test it by scanning a product into Notepad. Devices that need a special connection are not supported in Fanann programs for now.
Is stock deducted automatically when the cashier sells?
If the cashier and stock are one program and you asked for it in the description, yes. Two separate programs keep separate data. For a small shop, one program with a sell screen and a stock screen is simplest.
What if the PC running the program breaks down?
With local data the records are lost unless you kept a backup, and nobody can recover them. Keep a daily copy off the PC. With cloud data you sign in from another PC and find everything.

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