Consent Mode V2 for Shopify with the right gcd parameters

Shopify Discussion

Topic summary

A user is troubleshooting Google Consent Mode V2 implementation on Shopify using CookieYes. They’re consistently receiving the gcd parameter value 13t3t3t2t5l1 but expected values like 13r3r3r2r3l1 or 13r3r3r2r6l1.

The gcd Parameter Explained:

  • Encodes visitor consent status for Google services (Analytics, Ads)
  • Letters indicate consent states: “r” = granted, “t” = denied
  • Numbers represent specific consent categories
  • “13” prefix and “l1” suffix are Shopify-specific identifiers

Current Issue:
The “t” values in 13t3t3t2t5l1 indicate users are denying consent for certain Google services, which explains why the expected “r” (granted) values aren’t appearing. The issue appears to be related to actual user consent choices rather than a technical misconfiguration.

The discussion remains open with no definitive resolution provided for achieving the desired parameter values.

Summarized with AI on October 30. AI used: claude-sonnet-4-5-20250929.
1

Hello,

Did anyone obtained the value 13r3r3r2r3l1 or 13r3r3r2r6l1 for the gcd parameter in Shopify using a Google partner, like CookieYes?

I get constantly 13t3t3t2t5l1.

Thanks.

2

Hi,

This is Richard at PageFly - Shopify Advanced Page Builder app.

You’re encountering a specific technical detail related to Shopify’s consent management and Google partner integrations, particularly with CookieYes. Let’s break down what’s happening and why you’re seeing those specific string patterns.

Understanding the gcd Parameter

  • The gcd parameter in Shopify is related to Google Consent Mode. It’s used to communicate the consent status of website visitors to Google services (like Google Analytics and Google Ads).
  • The string value (e.g., 13t3t3t2t5l1) encodes the consent choices made by the user.
  • The different letters and numbers within the string represent different consent states for various Google services.
  • The letters such as “r” or “t” represent the consent states. r most often represents granted, and t most often represents denied. The numbers represent the consent category. The “l” represents the loading state.

Why You’re Seeing 13t3t3t2t5l1

  • The “t” values in your string indicate that the user has denied consent for certain Google services.
  • This is the most likely reason why you are seeing that specific string.
  • The “13” at the beggining, and the “l1” at the end, are shopify specific items that are used to help google understand the shopify consent state.
  • The numbers between the t’s represent the specific google consent strings.

Hoping my solution helps you solve your problem.

Best regards,

Richard | PageFly