I have a sheet that employees will update daily with information about tasks done that day. Each column has a date in the header row (row 3 in this case), and after the end of the following day I want that column to lock so it cannot be edited further except by myself and one other. This is to prevent people from covering up mistakes or accidentally changing or deleting data.
I am looking for a script or something that will accomplish this. This sheet has about 45 tabs and I need the same thing applied to all of them. My idea is possibly a script that triggers at a certain time based off the date in the header row, so if the date is May 5th 2017, the respective column would lock itself at midnight on the 6th.
A link to a copy of my sheet, minus data is here.
Alternatively, if there is a way to simply lock any cell 24 hours after the most recent data is entered into it, and prevent further editing by everyone except select people, that could work too if the ideal method isn't doable.