Data Validation

GMBJames

New Member
Joined
Aug 21, 2002
Messages
22
Hello all,
Using excel 2000, how can I put a validation on cell A1 where the user can only enter any number in it IF the sum of cells B1:E1 is less than 5? If the sum of the cells is greater than 5, I don't want the user to be able to enter anything in A1.
Thanks.
 

Excel Facts

Which came first: VisiCalc or Lotus 1-2-3?
Dan Bricklin and Bob Frankston debuted VisiCalc in 1979 as a Visible Calculator. Lotus 1-2-3 debuted in the early 1980's, from Mitch Kapor.

Barry Katcher

Well-known Member
Joined
Feb 25, 2002
Messages
4,053
In cell A1, click on Data/Validation.

Allow: Custom
Formula: =SUM(B1:E1)<5
 

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