Barcodes for Shelf Pricing

Shelf pricing barcodes support backroom labeling guns and inventory strips that still expect MSI Plessey—common in legacy grocery backrooms transitioning to Code 128. MSI encodes numeric shelf and batch IDs for tools not yet upgraded. Generate in the MSI generator only where hardware requires it.

Why teams use this

Stores run hybrid environments: POS uses UPC while backroom markdown guns read MSI. Mismatch strands discounted inventory untrackable in back-office systems.

How to implement it

Audit which guns remain MSI-only, migrate new SKUs to Code 128 when scanners allow, and keep label formats documented for seasonal hires.

• Print test strips after every gun firmware update.
• Separate MSI labels visually from consumer UPC art to avoid cashier confusion.
• Retire guns proactively when spare parts disappear.
• Train staff not to cover MSI quiet zones with adhesive overlays.
• Log which departments still depend on MSI workflows.

Common mistakes

Printing MSI for new programs when corporate standard is Code 128 creates dual-inventory chaos. Faded thermal strips fail mid-audit. Do not assume MSI check digits match other symbologies—validate per spec.

Tools to get started

Use MSI alongside Code 128 and read choosing a symbology for migration planning.