For AI agents: visit https://developer.loopwork.co/llms.txt for an index of all pages formatted in Markdown and endpoints in OpenAPI. Append .md to any documentation page URL to get its markdown version.
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v2026.04
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v2026.04
Guides
API Reference
Changelog
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March 11th, 2026
Added
Backup payment method APIs are now available
March 11th, 2026
Improved
previous payload object now available in the `subscription/updated` webhook
March 11th, 2026
Added
Edit a subscription line item quantity
March 11th, 2026
Added
Remove a line item for the next order only
March 11th, 2026
Added
Read subscription id using shopify order id
March 11th, 2026
Improved
New subscription keys now available across Admin API endpoints
March 11th, 2026
Added
Migrate customer payment methods to Shopify via Admin API
March 11th, 2026
Added
Fetch cancellation flow logs
December 15th, 2025
Improved
prepaidIntervalCount key added to subscription/created webhook
December 15th, 2025
Added
Now power loyalty widget directly on your headless customer portal
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