Why is the Google Analytics setup test failing with the 'Dimension must include date' exception?
Google Analytics setup form
Add Date to the Dimensions field.
Date is a required dimension because it is used as the incremental key.
Date also minimizes any chance of sampling from the API.
Because the Date dimension is required, we do not support capturing unique visitor data on a monthly or weekly basis.
Please see this feature request for the response from our Product team.