--- title: Shopify Flow: Changes to Action extensions result in... description: Shopify Flow is changing how breaking changes to Action extension configuration fields are handled. Previously, any field mismatch caused runtime validation to... canonical: https://daily.dev/posts/shopify-flow-changes-to-action-extensions-result-in-fewer-breaking-changes-pwwzomtya twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Shopify Flow: Changes to Action extensions result in fewer breaking changes | daily.dev og:description: Shopify Flow is changing how breaking changes to Action extension configuration fields are handled. Previously, any field mismatch caused runtime validation to... og:url: https://daily.dev/posts/shopify-flow-changes-to-action-extensions-result-in-fewer-breaking-changes-pwwzomtya og:image: https://api.daily.dev/og/posts/PwWZOMTya.png og:image:alt: Shopify Flow: Changes to Action extensions result in fewer breaking changes og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Shopify Flow: Changes to Action extensions result in fewer breaking changes **[Shopify Developer changelog](https://daily.dev/sources/shopifychangelog)** · 2 min read · 0 upvotes · 0 comments ## Summary Shopify Flow is changing how breaking changes to Action extension configuration fields are handled. Previously, any field mismatch caused runtime validation to fail and prevented requests from reaching partner servers. Now, workflows using older action versions will continue to execute, and Shopify will forward the request to the configured endpoint regardless of schema differences. Developers must update their endpoints to gracefully handle payloads that may have missing required fields, extra legacy fields, or other schema mismatches — using strategies like default values, ignoring unknown fields, or returning clear error responses. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Shopify Flow: Action runtime URLs now update automatically](https://daily.dev/posts/shopify-flow-action-runtime-urls-now-update-automatically-miiughvsm) · Shopify Developer changelog · 0 upvotes · 0 comments - [Flow action extensions now support relative paths for endpoint URLs](https://daily.dev/posts/flow-action-extensions-now-support-relative-paths-for-endpoint-urls-jynbh6b8b) · Shopify Developer changelog · 0 upvotes · 0 comments - [Next Generation Events now available in developer preview](https://daily.dev/posts/next-generation-events-now-available-in-developer-preview-336k1r8qm) · Shopify Developer changelog · 0 upvotes · 0 comments - [Fulfillment service callback url is now optional](https://daily.dev/posts/fulfillment-service-callback-url-is-now-optional-mv6kfxife) · Shopify Developer changelog · 1 upvotes · 0 comments - [Multi-channel support for sales channel apps](https://daily.dev/posts/multi-channel-support-for-sales-channel-apps-dzqi39nsm) · Shopify Developer changelog · 0 upvotes · 0 comments --- Tags: [#shopify](https://daily.dev/tags/shopify) [View this post on daily.dev](https://daily.dev/posts/shopify-flow-changes-to-action-extensions-result-in-fewer-breaking-changes-pwwzomtya) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Shopify Flow: Changes to Action extensions result in fewer breaking changes","url":"https://daily.dev/posts/shopify-flow-changes-to-action-extensions-result-in-fewer-breaking-changes-pwwzomtya","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/shopify-flow-changes-to-action-extensions-result-in-fewer-breaking-changes-pwwzomtya"},"datePublished":"2026-07-07T20:31:19.319Z","dateModified":"2026-07-07T20:31:36.039Z","description":"Shopify Flow is changing how breaking changes to Action extension configuration fields are handled. 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