Huge Traffic Drop after change in cookie banner

[GV16]

Hi,

We recently changed cookie from Onetrust to Transcend and I noticed there is almost 60% drop in traffic in Adobe Analytics after implementation. When I checked Google Analytics, there is not huge drop as in Adobe analytics. What can be the reason for this?

Thank You,

Garvita.

[YohanKh1]

Is the implementation done via Adobe Data Collection (Launch)? If so it may be that the traffic in Adobe is a result of the implementation while Google Analytics is not impacted and have continued to track users despite their banner choice. 

[GV16]

Thank you for responding. The code was implemented directly in code base instead of Launch.

[YohanKh1]

Is it possible that the code did not apply the restrictions based on the users selections for GA? 

If the implementation is accurate - where the restrictions are applied to both GA and AA - you should be seeing similar drop off in traffic with some margins or error but not 60% drop in one vs. the other. 

[andreiabenites]

Documentation says "All Adobe solutions’ client-side libraries depend on the Opt-in service and will not generate cookies unless the solution has been granted permission."

https://experienceleague.adobe.com/en/docs/id-service/using/implementation/opt-in-service/getting-st...

If Transcend (or your custom code) delays them until after the page renders or after consent is decided, you may lose early hits.  

Also, if your code doesn’t configure pre-opt-in behavior, Adobe will default to “block until explicit consent.” This can wipe out a huge portion of traffic.