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Question

Passing custom UTM parameters in Consensus

  • March 17, 2026
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Hi team,

We’re currently testing parameter passing through a Consensus demo link and had a quick question regarding query parameter handling.

We initially passed a custom parameter (posthog_distinct_id) via the consensus URL from our website, which seemed to work briefly, but is no longer being captured downstream. We’re now testing with a standard UTM parameter (utm_campaign) to see if that makes a difference.

Could you clarify:

  • Does Consensus support forwarding arbitrary/custom query parameters, or are only specific parameters (e.g., standard UTM fields) retained?

  • Are there any restrictions, filtering rules, or required configurations for passing query parameters through the demo flow?

  • Is there any known issue where parameters might be dropped during redirects or session initialization?