Product data contract
Define which fields, identifiers, variants, stock and market context go to search.
Product data →Headless commerce
Search & discovery as a standalone capability next to your storefront.
For headless and custom architectures, integration is less about a plug-in and more about clear contracts for product data, search-APIs, frontend components and events.
Architecture boundaries
Four contracts make headless search manageable.
Search-API
Capture query, filter, sorting, and result behavior for the storefronts that use search.
Developers →Frontend contract
Determine how autocomplete, results, filters, states, and error handling are processed in the frontend.
Search UX →Event contract
Make query, click and conversion events consistent across storefronts and channels.
Analytics →Why disconnect?
Manage search centrally while storefronts can evolve independently.
Multiple storefronts
Use the same search logic where that helps and maintain channel context where it differs.
Multi-store →Free UX
Design search interfaces appropriate to brand, channel or use case without securing search logic in templates.
Search UX →Phased migration
Replace parts checked and test search quality before traffic is fully converted.
Implementation →Operations
Keep an eye on latency, index freshness, releases and event health outside the storefront.
Operations →Technical fit
Assess the integration on contracts, not on a platform logo.
In headless commerce, clear data, API-, frontend and event boundaries are more important than a generic connector claim.
LowQuestionRoute
DataWhich source is leading?Product data
APIWhat interactions are needed?Developers
FrontendWho manages UX state?Search UX
EventsHow do we measure behavior?Analytics