Gmail has always been the easiest of all the technical websites in terms of usage or understanding, but still there are few basic technical procedures that sometimes put the user into technical troubles such as putting mails to archive becomes tricky on the application for that, open the application look for the message that is to be archived select all the emails that are to be archived click on the black box icon for any more information: http://gmailhelplinenumbercouk.blogspot.com/2018/08/how-to-fix-gmai...