1. Why QR for Inventory
A QR code can store a unique item ID, location, and batch reference in a single symbol. Most staff smartphones can scan without a dedicated device, lowering hardware costs.2. Label Design
Print the item ID in human-readable text alongside the code. Use level Q, 0.5 mm minimum module size, and durable polyester or synthetic labels in environments with moisture or chemicals.3. Scanning Workflow
1. Receive: scan item QR into the system as "in stock" at a specific location. 2. Pick: scan to decrement stock and record who moved it. 3. Ship: scan for outbound confirmation. 4. Count: periodic scan to reconcile actual with system stock.4. Unique Code Per Item vs Per SKU
Serialised codes (one per unit) enable precise tracking but cost more to print and manage. SKU-level codes are simpler but cannot track individual items.5. System Integration
Expose a simple POST endpoint or use a spreadsheet-backed webhook. Keep the mapping of QR payload to item description in a database you control.Putting this into practice
Start with the smallest real test you can run. Generate the code, print it at the exact size you plan to use, and scan it with two different phones in the lighting where it will live. Check that the destination page loads quickly on a mobile connection and that the call to action next to the code tells people what they will get. If anything feels slow or unclear, fix it before you print a full batch, because reprints cost more than a short test. Keep a note of the size, material, and placement that worked so the next batch starts from a proven setup.Common mistakes to avoid
The most common mistakes are easy to avoid once you know them. Long payloads make modules tiny, low contrast makes edges hard to read, and text placed too close to the border eats the quiet zone the scanner needs. Covering a corner finder pattern with a logo or a sticker breaks detection entirely, and a code placed behind glare or on a curved surface fails even when the print is perfect. Review each of these points on a proof copy, and treat any failure as a reason to adjust the design rather than a reason to blame the scanner.Quick checklist
- Keep the payload as short as practical so modules stay large. - Keep dark modules on a light background with strong contrast. - Leave a clear quiet zone on all four sides of the symbol. - Test the printed code at the real viewing distance and lighting. - Confirm the destination page loads fast on a phone. - Recheck the code after any change to the link, design, or placement.Codes that stay in circulation need occasional attention. Links change, pages move, and printed materials fade, so review each live code on a regular schedule and confirm it still opens the right destination. When a destination changes, update a dynamic code or reprint a static one on the same day, and remove old codes from circulation so nobody scans a dead link. Keep a simple register of where each code appears, what it points to, and when it was last tested, because a code nobody owns is a code nobody fixes.