Action required: Use "checkout.order_id" on the Thank You page

Topic summary

A user received an email from Shopify requiring them to update code on their Thank You page, specifically replacing deprecated order.{anything} syntax with checkout.order_id.

Issue Details:

  • The notification indicates outdated Liquid code that needs updating
  • Affects the Thank You page checkout functionality
  • User attached screenshots of the email but needs help understanding the required changes

Proposed Solution:

  • Another user referenced a previous thread with a solution for the same issue
  • The fix involves finding and replacing the old order.* references with the new checkout.order_id syntax

Current Status:

  • The original poster acknowledged the reference but expressed difficulty understanding the solution and requested clearer guidance
  • Discussion remains open with the user seeking more detailed instructions
Summarized with AI on November 8. AI used: claude-sonnet-4-5-20250929.

I have just got an email mentioned in the pictures attached. Please help me resolve the issue

A similar post was posted before with a solution. Here was that post:
Solved: Got email from Shopify - “order.{anything}” replace with “checkout.order_id” in additional…

Hope this helped!

Yes @PaulMartin_1 , i could not understand this, need more clearance about it