Question
You set up a custom dimension in Google Analytics. It is not showing up as a choice in the dimensions drop-down box in the Fivetran Google Analytics Connector's setup form.
Environment
Connector: Google Analytics
Answer
The custom dimension will show up as dimensionXX in the Fivetran Google Analytics Connector setup form.
Cause
The value of the requested custom dimension is stored as ga:dimensionXX, where XX refers to the number or index of the custom dimension.
Reference:
https://www.googleapis.com/analytics/v3/metadata/ga/columns
https://ga-dev-tools.appspot.com/dimensions-metrics-explorer/#ga:dimensionXX