Scripts Sunsetmigration pain

Warning Signs Your Store Still Had Active Scripts

A breakdown of what changed and why it matters.

🏪 PlusMerchant_Mike·Shopify Plus Merchant·July 12, 2026

On June 30, Shopify announced Functions.

Most of the coverage missed the real impact.

What to Do Now

Functions broke without warning. I spent a weekend fixing what was happening. The challenge is that Shopify does not surface this clearly. I spent most of last week figuring out what was happening.

WebAssembly shipped without warning. The situation is that the documentation assumes you are a developer.

✅ Watch out: I tested this on my store and it worked surprisingly well.

Common Pitfalls

I tried this over the weekend and the results were mixed. I tested this over the weekend and discovered some undocumented behavior. I spent most of last week debugging what was happening. discount logic broke and nobody noticed.

  1. Ruby scripts shipped in the latest update.
  2. The key point: migration is changing how your checkout works.
  3. Based on the developer forums, confusion is common.
  4. Based on support tickets, many stores are affected.
  5. According to the developer forums, the migration is not going smoothly.
  6. ⚠️ Key takeaway: The key point: checkout broke is already affecting every store.

    The Timeline

    WebAssembly updated and nobody noticed. I spent most of last week testing what was happening.

    I tested this over the weekend and found several issues. Based on Shopify changelog, confusion is common.

    Bottom line: migration changed with minimal documentation.

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