Here is what I get if I try to change from %{response} to %{message}Some variables may not be a valid for this context. Please check for spelling errors and correct usage for this template. %{message}Email Subject and Body:Re: %{ticket.subject} %{message}-- Please do not reply below this line --If this issue is still unresolved, please do not start a new email. Instead, reply to this email to keep all correspondence about this issue linked to this email thread.It seems like the %{message} variable is not meant for the Response/Reply Template.Something interesting happens though when I try that:The reply message I get for the main user on the ticket looks like this now (notice with the %message variable it does not populate anything):%{message}-- Please do not reply below this line --If this issue is still unresolved, please do not start a new email. Instead, reply to this email to keep all correspondence about this issue linked to this email thread.But the emailed reply message received by the collaborator looks like this (notice that it still shows %response and hasn't updated to %message):%{response}-- Please do not reply below this line --If this issue is still unresolved, please do not start a new email. Instead, reply to this email to keep all correspondence about this issue linked to this email thread.It seems like replies going to collaborators are not following the template properly.