Hi @Mycal_Tamariki Sometimes it takes 6-12 hours for A4T links to generate (A4T data collection) .
When did you push this experiment live ?
If its more than 24 hours then check if you can see sdid param value(param present in AT call ) is matching with supplementalDataId param value(parameter present in analytics call ) and mid param value (param present in AT call ) is matching with marketingCloudVisitorId param value (parameter present in analytics call )
Hope this helps!