Checkout, Payments & Conversion
Powered by Deploi
Select Subcategory
Common Questions
Why did Shopify start forcing automatic Checkout Extensibility upgrades starting January 2026 instead of leaving it opt-in indefinitely?
Shopify began auto-upgrading checkouts on 6 January 2025, not January 2026. The programme applied to Shopify Plus stores still running checkout.liquid on the information, shipping and payment pages, with 30 days of email notice before each upgrade. Shopify's stated reason is fraud control: unsandboxed checkout code makes risk assessment unreliable, so affected stores lost fraud indicators in the admin.
What does a Checkout Extensibility migration actually cost for a mid-market Shopify Plus store with 5-10 custom checkout integrations?
No published price exists for a Checkout Extensibility migration, because the work is priced per integration, not per store. Deploi's own decision record puts a full upgrade programme at $20,000 to $75,000 end to end over 8 to 14 weeks, with most landing in the $25,000 to $75,000 band (Deploi estimate, illustrative, September 2026). Integration count drives the number.
How do we write a clear brief for an agency to scope a custom Shopify Function, if we don't know the technical terms ourselves?
A usable Function brief answers five questions in plain business language: what the rule reads, what it outputs, what happens when it collides with another discount, what happens when it fails, and who edits the numbers later. Shopify's own limits turn two of those into hard constraints: 200 line items and a 3,000 byte input query (shopify.dev, September 2026).
Do we need to budget for a tracking-app plan upgrade (e.g., to a server-side tier) at the same time we migrate to Checkout Extensibility?
A tracking-app upgrade belongs in the same budget cycle only when your purchase tracking lives in the additional scripts box. The new thank you and order status pages accept app pixels and web pixels only, so a hardcoded GA4 or Meta tag has no home. Elevar, now sold as Audiense Online, starts at $225 per month for 2,000 orders (Audiense, September 2026).
Can we prototype a discount-stacking or validation rule using Shopify Flow first, before committing budget to a custom Function build?
Shopify documents Functions, not Flow, as the mechanism for checkout backend logic, so Flow cannot stand in for a discount or validation rule. Flow is a free triggers, conditions and actions automation app on Basic, Grow, Advanced and Plus (Shopify Help Center, September 2026). Run Flow first to prove your tags and metafields are populated.
If our custom shipping-rate Function needs updating every time we add a new fulfillment location, does that ongoing cost make a simpler native rule table a better long-term choice?
A shipping Function that needs a code change per new location was scoped wrong, not chosen wrong. Read locations from configuration and a new warehouse becomes a data edit. Shopify allows up to 99 custom shipping profiles plus the general profile (Shopify Help Center, September 2026), which is the ceiling that decides whether native rules can carry the logic instead.