How do I keep market pricing consistent between widget, cart, and checkout discounts?

[hue-ra]

I’m using Shopify Markets and want the storefront tier price and final checkout discount to always match. What architecture is recommended?

[rsusano]

Hi, Use one canonical pricing path and shared identifiers.

• Treat server-side pricing logic as source of truth.
• Widget should request pricing from app proxy/server, not recalculate differently on client.
• Store tier metadata in a consistent schema referenced by both widget and discount logic.
• Add regression tests for at least 2 currencies and multiple quantities.

Consistency depends on shared data contracts, not duplicated calculations.