Need a shopify doc on this update or anybody knows how can we achieve it

Shopify Discussion

Topic summary

  • Update: As of January 1, 2026, new legacy custom apps can no longer be created; existing apps are not affected.

  • Request: The poster is asking for an official Shopify documentation link for this change or guidance on how to accomplish the needed setup under the new rules.

  • Impact: Prevents starting any new projects that rely on legacy custom apps, while current installations continue to operate.

  • Current status: No documentation link, alternatives, or implementation steps have been provided yet. The question remains open.

  • Next steps sought: Clarification on available options or migration paths and where this policy is documented in Shopify’s docs.

Summarized with AI on January 6. AI used: gpt-5.
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As of January 1, 2026, you can no longer create new legacy custom apps. This does not impact any existing apps. shopify documentation

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The changelog entry is here. There is a suggested solution too:

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