Shopify Scripts stopped executing on June 30, 2026. Any discount, shipping or payment logic that depended on them now needs a supported replacement. The task is not a line-by-line rewrite. Scripts often contain years of commercial exceptions, and some rules should move to Shopify Functions, a public app, standard configuration or a revised business process.
This guide approaches the subject as a connected commerce decision. It relates the topic to Flashyminds Shopify development services, with supporting context from API development and integration and web maintenance and support. The purpose is to help teams choose, implement and govern the work using clear evidence rather than adding technology without ownership.
The short answer
Start from the rule inventory and expected outcome. Use Shopify’s customisations report and current Function availability to map each script by input, condition, output, plan requirement and affected checkout surface. Rebuild only required rules, then test discounts, delivery, payments, markets, subscriptions, express wallets and agentic checkout where relevant. Unsupported gaps need an explicit business decision, not silent approximation.
Why does this matter to the business?
A promotion may appear simple but interact with customer segments, product exclusions, stacking, currency, returns and reporting. Flashyminds turns each legacy script into a testable rule and identifies who owns it. This reduces the risk of replacing technically similar code that produces a different commercial result.
What should the team evaluate first?
Start with the customer journey, commercial rule, data owner and consequence of failure. The following questions make the requirement testable before a platform, app or implementation pattern is selected:
- Export and review every retired script, including unpublished variants and campaign copies.
- Confirm which Shopify Function API or supported app owns each required outcome on the current plan.
- Document precedence, combinability, error messaging, market behaviour and reporting expectations.
- Identify rules that no longer create value and retire them instead of preserving historical complexity.
A practical implementation approach
Use a staged sequence so assumptions are tested while decisions are still reversible:
- Create a rule catalogue with examples of qualifying and non-qualifying carts.
- Map each rule to a Function, app, configuration or process decision.
- Build automated scenarios and complete end-to-end checkout and order tests.
- Deploy with monitoring, stakeholder approval and a rollback or disable path for each rule.
What commonly goes wrong?
Most avoidable problems come from unclear ownership, incomplete data or a capability being mistaken for an outcome. Watch for these risks:
- A direct code translation can preserve obsolete logic and hidden defects.
- Function capability or plan assumptions can leave gaps late in the migration.
- Discount totals may be correct while reporting, returns or customer messages behave differently.
How should success be measured?
Compare qualification accuracy, checkout completion, discount cost, support contacts, order corrections and Function errors against the documented rule set. Review the first live campaigns closely. Migration is complete only when commercial owners confirm the outcomes and the retired implementation no longer carries hidden dependencies.
How does this connect with the wider commerce system?
Continue with Shopify Checkout Extensibility: What Merchants Can Customise, Shopify Apps or Custom Development: Avoiding an Expensive App Stack, Ecommerce Security and Fraud Controls Without Adding Buyer Friction. These articles address neighbouring decisions that affect the same data, customer journey or operating model. They are linked to extend the analysis, not to repeat the same recommendation.
Official references for changing guidance
Platform capabilities, protocols and standards can change. Check the current details in Shopify Scripts to Functions migration guidance and Shopify checkout app documentation. This Flashyminds article translates those sources into planning guidance and does not replace the latest specification, plan rules or security advisory.
Frequently asked questions
Do Shopify Scripts still run after June 30, 2026?
No. Shopify states that published Scripts were deactivated and no longer function after the sunset date.
Can every Script be replaced by a Shopify Function?
Not necessarily in the same way. Review current Function APIs, plan availability and supported apps, then decide how each business rule should change.
Should old promotion logic be copied exactly?
Only when the rule is still required and understood. Migration is a useful point to remove conflicting, unused or unmeasured exceptions.
What is the sensible next step?
Review one representative journey with the people who own commerce, data, technology and customer service. Document the current constraint, expected outcome and acceptable risk before selecting a solution. If the work needs structured discovery, implementation and long-term ownership, explore Flashyminds Shopify development services and use the evidence in this guide to frame the first conversation.