I had 800+ users and when i select all providers options in Day view and clicking on Week or Month views throwring below error
http error 414. the request url is too long.
Looks like this issue is due to clicking Week view generating URL query string with all users like below
view-source:https://http://demo.openemr.io/openemr/interface/main/calendar/index.php?module=PostCalendar&viewtype=week&func=view&&pc_username[]=user1&pc_username[]=user2&pc_username[]=user3&…&pc_username[]=user800&framewidth=1365
Can some one please help on this issue.