Dynamic complexity cost for `metafieldsSet` mutation
Shopify developer change
MerchantDiff detected this entry in Shopify's official developer changelog on September 15, 2026.
This Shopify update is categorized as API, Update, Admin GraphQL API.
What changed
Previously, every metafieldsSet call cost a flat 10 api points, regardless of how many metafields or resources it touched. Now the cost is calculated as follows: Cost = base cost (10) + the sum of the costs for each distinct resource owner type in your mutation. For each distinct resource owner type, the cost is (the number of distinct resources of that type * weight of that owner type) | Owner type | Weight | |
Who is affected
Apps that read, write, translate, or depend on Shopify metafields should review this change.
What action may be needed
Review the official Shopify entry, confirm whether the change touches your app, and test the affected workflow before your next relevant deployment.
Use the official Shopify entry below as the source of truth for technical implementation details, affected APIs, migration instructions and deadlines.
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