Use a Shopify integration app when your workflow is standard, your systems are supported, and the connector can meet your data and synchronization requirements without significant workarounds.
Choose a custom Shopify API integration when your workflow depends on complex inventory, multiple warehouses, custom pricing, proprietary ERP systems, multiple marketplaces, advanced reconciliation or business rules that a connector cannot reliably represent.
Why the distinction matters
Connectors can reduce implementation time and ongoing maintenance for common use cases. Custom integrations take more planning and development, but give you control over data mapping, workflow logic, error handling, monitoring and future extensions.

