FixM — Marking Codes Fixer (Chestny Znak / GS1) for Shop-Script

FixM is a lightweight utility plugin for Shop-Script that helps you clean up and normalize marking/labeling codes (Chestny Znak / GS1) stored in orders. It is designed for cases when codes are saved in an inconsistent form — for example, missing proper GS/FNC1 separators — which can lead to printing or processing errors.

Main idea: show you a safe preview first, then apply only the changes you want — manually or automatically.

Key features

• GS/FNC1 separator normalization (ASCII 29)
  • Collapse duplicated GS separators
  • Optionally ensure exactly one leading GS
  • Optionally remove a trailing GS
• Optional structure enforcement for Chestny Znak / GS1 AIs
  • Insert GS before selected AIs (21, 91, 92, 93) according to your settings
  • Helps restore consistent code formatting when separators are missing
• Preview-first workflow
  • See Current value and New value side-by-side
  • Edit the new value manually if needed
  • Save only selected rows for maximum control
• Flexible filters
  • Time window (e.g., last 24 hours)
  • Order statuses
  • Processing limit
• Automation & reporting
  • CLI + cron support for scheduled maintenance
  • Built-in cron command builder that generates the exact command based on your current settings
  • CSV export of preview/report (useful for audits and support cases)
  • Single code test tool (“before/after”) right on the settings page

Safe by design

• FixM does not change orders, products, prices, or customer data
• It only updates marking code values stored in shop_order_item_codes
• No external services — everything runs locally on your server

Recommended workflow

1. Open plugin settings and configure filters/options.
2. Click Preview to see what will change.
3. (Optional) Edit the New value and save only selected rows.
4. Run Automatic fix to apply changes in bulk.
5. (Optional) Copy the generated cron command and schedule it in your server crontab.

Compatibility

• Webasyst + Shop-Script
• Works with Webasyst UI 1.3 and 2.0

Tip: As with any bulk update, it is recommended to keep a database backup and start with a small preview limit before applying changes to large datasets.