Thanks Ross!
I believe it was from a thread I found but can't seem to find it anymore, I just tried the following but it doesn't seem to accept "Chat:..." as a valid parameter:
gam report usage user select group
em...@domain.com parameters chat:num_28day_conversations_read,chat:num_28day_messages_and_reactions_sent range -183d -1d todrive
"ERROR: Invalid choice (chat): Expected <accounts|classroom|docs|drive|gmail|gplus>"
I think "
gam report usage user select group " may be the issue now, do you know if there's another report command to use for this?
Thanks for your help.