Are you an LLM? Read llms.txt for a summary of the docs, or llms-full.txt for the full context.
Skip to content

Inventory and Conflicts

Cart Reserve does not modify Shopify inventory.

Instead, it operates alongside Shopify’s inventory system to manage temporary availability.

Inventory Source of Truth

  • Shopify remains the source of truth for inventory levels
  • Cart Reserve reads inventory data from synced products and variants
  • Inventory changes in Shopify are reflected in reservation behavior

Concurrent Sessions

When multiple sessions interact with the same product:

  • Inventory is reserved on a first-come, first-served basis
  • Once inventory is fully reserved, additional reservations are blocked
  • Released or expired reservations immediately free inventory

This prevents overselling during high-demand scenarios.

Inventory Changes During Active Reservations

If inventory is adjusted in Shopify while reservations are active:

  • Availability is re-evaluated
  • Existing reservations may limit further quantity increases
  • Checkout validation continues to enforce active reservations