Create button is not working anymore on TeamCalendar UI Page - Support and Troubleshooting

Create button is not working anymore on TeamCalendar UI Page Issue Manager ->Team Calendar is not working properly. When trying to add an event either through "Create" button or through double clicking on any user's time entry, it is not working.

Cause The issue is happening since UI Page $managerSchedule ( nav_to.do?uri=sys_ui_page.do?sys_id=4fb4c91cc3fb2200467f10c422d3aee6 ) has been customised

Resolution Check the Client script of the UI Page nav_to.do?uri=sys_ui_page.do?sys_id=4fb4c91cc3fb2200467f10c422d3aee6 .

If you will see that the old GlideModalFormSetWidth is loaded using an addLateLoadEvent, then update this part of the code accordingly by changing this line of the Client Script field from:

fileref.setAttribute("src", "scripts/classes/GlideModalFormSetWidth.js");

To:

fileref.setAttribute("src", "scripts/classes/MatchingRuleGlideModalFormSetWidth.js");

Please Note : The same issue can also occur for Agent ->Team calendar as well and for that check for UI page - $agentSchedule - nav_to.do?uri=sys_ui_page.do?sys_id=380a20dbc3671200467f10c422d3ae4a and perform similar update to fix the issue