If you have data layer enrichment enabled, you can use the "va" variable associated with the AudienceStream attribute to populate your pixel. You'll need to know the attribute type and ID to properly identify the variable in the data layer. For example, "va.metrics.3542" would correlate to a number attribute with the ID #3452.
Once you have the correct variable identified, you can reference it using "@@va.metrics.3542@@" in your pixel.
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