We covered the Scripts deprecation in an earlier post. The short version: Shopify Scripts stop running on June 30, 2026, and Shopify Functions are the replacement. As of April 15, 2026, you can no longer edit or publish new Scripts, which means Plus merchants who haven't migrated yet are now in the danger zone.
This post is the next layer down. It's the walkthrough. What the actual migration looks like in code, what breaks in translation, and the order we run the work in when a client hands us a Script Editor full of Ruby and asks us to make it Functions.
If you have a developer on your team, this gives them a sane starting point. If you don't, it gives you a clear picture of what you're hiring for.
The Mental Model Shift
Scripts and Functions solve the same problem in very different ways. The biggest mistake we see is people trying to port Scripts line-by-line. That doesn't work, because the underlying contract is different.
