Hi,
We recently enabled the "Force lower-case on all pageviews, event and custom variable calls" in the Google Universal Analytics tool settings, however it didn't work and we continued to see a mix of upper and lower-case letters in our accounts, in particular our pageviews. We've now resorted to implementing a filter in Google Analytics to do this for us, but we'd have preferred for this to work in the DTM settings from the beginning.
I can provide further information if necessary.
Thanks,
Edgar