Universal Analytics sent a notification "Property XXXX is receiving hits with utm_term
parameters of the same text but different letter cases" (e.g. MY term, my term, My Term) and proposed to set up a lowercase filter for Campaign Term, which I did.
After one week, the Keyword
column in Paid Keyword
view keeps showing a couple of lines with mixed cases.
Moreover, if in the All Campaigns
you select Keyword
as a Primary Dimension it shows many more mixed cases words that came from some non-paid campaigns
I checked actual URLs in BigQuery. All these words that appear in the Keyword
column do come as utm_term
parameters.
Why did not Campaign Term lowercase filter change my data?