Medusa v2 Pricing and Promotions

Before writing code

Fetch live docs:

1. Web-search site:docs.medusajs.com pricing module for pricing data model and service methods
2. Web-search site:docs.medusajs.com price list rules for conditional pricing configuration
3. Web-search site:docs.medusajs.com promotion module for promotion types and rules
4. Fetch https://docs.medusajs.com/resources/references/pricing and review the IPricingModuleService interface
5. Web-search medusajs v2 tax module region 2026 for latest tax calculation and region setup

Pricing Module Architecture

Entity Relationships