GA4 is case-sensitive — a mismatch between the parameter name Invoca sends and the custom dimension name you created will prevent data from appearing.
Applies to: Google Analytics 4 (GA4), Marketing Data
Answer
A common and easily overlooked cause is a mismatch in capitalization between the parameter name Invoca uses to send the data and the name given to the corresponding custom dimension in GA4. GA4 is case-sensitive, so campaign_source and Campaign_Source are treated as entirely different names.Last modified on September 30, 2026
