We have a time off list in SharePoint and we need to make sure the employees select dates that are at least 3 business days in the future. I currently have the formula below in the Column Validation field....

=IF([Requested Day Off]>TODAY()+2,TRUE,FALSE)

This works great during the week, but come Thursday or Friday, they can request Monday off. I have created a another column named [3 Business Days Out] that has a calculated value formula below......


This returns the magical date I need. But now when I try to place a formula of =[Requested Day Off]>=[3 Business Days Out] in the list validation part of the site, I am getting an error message of "Cannot complete this action. Please Try Again". This has become very frustrating and not sure where I am failing. Any help would be appreciated. Thanks.

  • I posted this awhile back and assumed it was working. Instead, it was preventing them from entering a time of request on the weekend, but on Friday they could still request Monday Off. If a request is entered on a Wednesday, the earliest would be Monday, on Thursday, we want Tuesday to be the earliest, and Friday we want Wednesday to be the earliest. Please help. Oct 27, 2018 at 17:47

1 Answer 1


Your error is because a column validation formula cannot reference any other column. You could use a list item validation formula instead (List Settings, Validation Settings).

For a column validation formula, try this:

=AND( [Requested Day Off] > TODAY()+2, WEEKDAY([Requested Day Off],2) < 6 )

You don't need the IF's because AND, OR and simple comparisons return True or False by themselves.

  • Can you please explain what is happening with that second statement. I want to understand it. I appreciate it. Sep 24, 2018 at 14:20
  • WEEKDAY is an Excel and SharePoint function that returns a number for the day of the week. When the second parameter is set to "2", it returns 1 for Monday, 2 for Tuesday... 7 for Sunday. So, any day that is less than 6 is a week day. support.office.com/en-gb/article/… Sep 24, 2018 at 17:44

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