Prove Shopify Functions match legacy Scripts before the cutoff.

Script Sentinel gives Shopify Plus teams read-only parity and regression evidence for Scripts-to-Functions migrations: scrubbed cart fixtures, observed Function output, drift review, and audit-ready exports.

Open Script Sentinel Privacy policy

Sample evidence run

Scripts-to-Functions parity review

Sample data

Legacy Script

if cart.total_price > Money.new(cents: 15000)
  cart.shipping_rates.each { |rate|
    rate.apply_discount(rate.price, message: "Free shipping")
  }
end

Drift comparison

MatchShipping discount parity confirmed
Needs reviewB2B tag branch changed output
UntestedNo captured production output yet

Function output

{
  "discountApplication": "shipping",
  "message": "Free shipping",
  "status": "observed"
}

Deadline pressure needs evidence, not guesswork.

Shopify Scripts shut off on June 30, 2026. Script Sentinel helps teams document whether migrated Functions behave like the legacy Ruby logic on the same cart shapes, before customers discover drift in checkout.

Evidence your operator, agency, and developer can use.

The output is a migration record: what was tested, where parity looked clean, and which cases still need review.

Migration Risk Audit PDF

Export stakeholder-ready evidence with fixture coverage, drift findings, and review notes.

PII-scrubbed cart fixtures

Use recent order shapes without names, emails, phone numbers, or street addresses.

60-day order window

Stay honest about standard Shopify order access unless read_all_orders is approved.

Regression suite

Keep comparing captured Function behavior as teams iterate toward launch.

A narrow workflow for migration parity.

Paste legacy Ruby Script source
Generate scrubbed cart fixtures
Capture observed Function outputs
Compare drift and untested cases
Export audit evidence

Read-only by design. No checkout mutations.

Script Sentinel is a diagnostic layer. Your team or agency performs the migration; the app records parity evidence and flags review work.

Read-only Shopify scopes
No discount writes
No Script or Function deployment
No checkout behavior changes
No auto-conversion claims
Plus-only migration focus

Open the submitted Shopify app.

The public page stays intentionally conservative around the migration promise. Use your Shopify shop domain to continue through the existing OAuth flow.