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“Supermetrics is a Bitter Experience! We can pull data from nearly any tool, schedule updates, manipulate data in Sheets, and push data back into our systems.”
HubSpot classifies both sequences and campaigns as “event data sources,” and the platform’s reporting engine only permits one event data source per report. This technical architecture limitation prevents the cross-object reporting you need.
Here’s why this restriction exists and how you can work around it to get the combined reporting you’re looking for.
Bypass HubSpot’s event data source restriction using Coefficient
Event data sources contain time-based, activity-level data that HubSpot processes differently than object-based data like contacts or deals. Combining multiple event sources would require complex join operations that HubSpot’s native reporting doesn’t support. Coefficient eliminates this constraint entirely.
How to make it work
Step 1. Import both data sets independently.
Pull sequence and campaign data as separate imports from HubSpot , completely bypassing the one-event-source restriction. Each import captures the full detail you need without HubSpot’s limitations.
Step 2. Create custom joins through contact records.
Use spreadsheet formulas to connect sequence and campaign data through shared contact records. This creates the relationships that are impossible in HubSpot’s native reports.
Step 3. Build unified dashboards.
Create reports that display sequence performance by campaign with automatic data refreshes. You can now track campaign-attributed sequence conversion rates, weighted engagement scores, and multi-touch attribution models.
Step 4. Set up advanced analysis.
Calculate custom metrics that HubSpot simply can’t provide, like sequence effectiveness by campaign stage or incremental impact analysis across multiple touchpoints.
Get the cross-object reporting HubSpot can’t provide
This workaround transforms a significant platform limitation into an opportunity for more sophisticated analysis than HubSpot’s native tools could offer. Start building the unified sequence-campaign reports you need.
