Hi, Need your help as I'm into making a Attendance Management System for a college POC and stuck in-between. Basically, I have created a Daily Attendance Form (through Suitelet) for marking Students as Present/Absent through checkboxes which gets saved on my Custom Record Type in Custom List. Here only I have created another checkbox for "On Leave" & I want to include leave status of students on the basis of their leave applications which students submit to their respective Professors. so I want that the 'On Leave' checkbox on my Daily Attendance form gets disabled for that particular date. Unable to find a way-out. Please suggest how to do on this current system OR shall I try any other option?

You either disable the entire column or you don't. What you could possibly do is show up an alert if the user clicks on a checkbox for which they are on leave. And also color code those checkboxes to red/grey using jQuery and css..

Yeah! Thanks for the second part but couldn't understand the 1st part?

I believe your suitelet attendance view is made using sublist. In a sublist you can disable one entire column, You can't disable a few specific cells.

Yes, it is using Sublist.