--- title: "Shopify Tax calculation requests and tax summary webhooks switch to Global IDs in 2027-01: 2026-10-01 | Harbyn" description: "Shopify Tax calculation requests and tax summary webhooks switch to Global IDs in 2027-01, announced Oct 1, 2026." canonical: "https://harbyn.com/changes/shopify/2026-10-01-tax-webhook-summary-and-calculation-requests-now-use-global-ids" last-updated: 2026-10-03 --- # Shopify Tax calculation requests and tax summary webhooks switch to Global IDs in 2027-01 Markdown version of . Breaking change - Shopify. medium severity. Announced. From API version 2027-01, third-party tax apps receive Global IDs (gid://shopify/...) instead of numeric or string IDs for Customer, Company, CompanyLocation, Product and ProductVariant in tax calculation requests, and for all entity IDs in the summary section of tax summary webhooks. The webhook also adds admin\_graphql\_api\_id, shop\_admin\_graphql\_api\_id and order\_admin\_graphql\_api\_id; shop\_id and order\_id stay integers. Update ID parsing before upgrading. ## Facts | Fact | Value | | --- | --- | | Vendor | [Shopify](https://harbyn.com/vendors/shopify.md) | | Kind | Breaking change | | Severity | medium | | Status | Announced | | Announced | Oct 1, 2026 | | Added to Harbyn | Oct 3, 2026 | | Lead time | No dated deadline | | Vendor page | | | Review | Reviewed by a person, extracted by a model | ## Find it in your code ```sh npx harbyn scan ``` This change names no identifier the scanner can match line by line, so the scan tells you whether your repository uses Shopify, from its packages and API hosts. Nothing leaves your machine. ## Sources Where this event comes from: the page we read, when we read it, and the hash of that snapshot. - (changelog, fetched 2026-10-03 05:27 UTC, sha256 `8fa8550cc939244de80fdd1db7e7b30d257c21fa84af76ee054e9fa6f647c3e5`) ## Related changes ### More from Shopify - [Discounts can be part of Rollouts, exposed through Discount.rollouts](https://harbyn.com/changes/shopify/2026-10-01-discounts-can-now-be-included-in-rollouts.md) (Behavior change, announced Oct 1, 2026) - [metafieldInteger collection conditions removed in API version 2027-01](https://harbyn.com/changes/shopify/2026-10-01-metafieldinteger-collection-condition-removed-in-api-version-2027-01.md) (Breaking change, announced Oct 1, 2026) - [Tax calculated on return shipping fees for eligible US orders](https://harbyn.com/changes/shopify/2026-10-01-new-tax-fields-for-return-shipping-fees-in-the-graphql-admin-api-2.md) (Behavior change, effective Oct 23, 2026) - [CustomerPhoneNumber gets smsMarketingConsent; flat SMS consent fields deprecated](https://harbyn.com/changes/shopify/2026-10-01-sms-marketing-consent-now-available-on-the-customerphonenumber-object.md) (Deprecation, announced Oct 1, 2026) ### Changes at other vendors - [Amazon Selling Partner API: October listing attribute usage and enumeration value updates](https://harbyn.com/changes/amazon-sp-api/2026-10-14-sp-api-updates-new-listings-items-api-ivp-values-in-eu5-jp-and-ca-stores-oct-2.md) (effective Oct 26, 2026) - [Supabase: four CBC-mode TLS 1.2 cipher suites will be removed from project HTTP APIs](https://harbyn.com/changes/supabase/2026-10-12-an-outdated-subset-of-tls-1-2-ciphers-will-be-disabled-on-project-http-apis.md) (effective Nov 10, 2026) - [Google Workspace APIs: OAuth clients must be marked as agentic to call Google Workspace MCP servers](https://harbyn.com/changes/google-workspace/2026-10-12-oauth-clients-must-be-marked-as-agentic-to-call-google-workspace-mcp-servers.md) (effective Nov 11, 2026) - [Bitbucket Cloud API: Git Credential Manager upgrade required for OAuth 2.0 Git authentication](https://harbyn.com/changes/bitbucket/2026-10-13-git-credential-manager-upgrade-required-for-oauth-2-0-git-authentication.md) (effective Nov 30, 2026) [All upcoming deadlines](https://harbyn.com/deadlines.md)