DigitalID Currency Rules runs a three-step pipeline on every product price: FX conversion using Shopify's own exchange rate, your stacked rounding rules per price band, and a per-variant Lock that nothing can overwrite. Build one Rule Set for".99 markets", another for "B2B", and assign across catalogs. Automatic 3-hours refresh keeps everything in sync. One-click rollback undoes any recalculation.

• Always Shopify's own exchange rate
• Psychological rounding that actually stacks
• Per-variant lock that nothing touches