How to restrict value entry/input in a cell based on another cell value in Excel?
Supposing you need to restrict value entry in cells based on another cell value, for example, cells in range B1:E10 are allowed to enter data if the value of cell A1 is Yes, but restrict data entry if another value existing in cell A1. How to achieve it? Please try the method in this article.
Restrict value entry in cell based on another cell value in Excel
You can achieve it with the Data Validation feature. Please do as follows.
1. Select range B1:E10, then click Data > Data Validation. See screenshot:
2. In the Data Validation dialog box, go to the Settings tab, select Custom in the Allow drop-down list, enter formula =$A$1="yes" into the Formula box, then uncheck the Ignore blank box. And finally click the OK button. See screenshot:
Note: You can change the formula based on your needs.
From now on, when value of cell A1 is “Yes”, the specified range cells are allowed to input data. See screenshot:
But if cell A1 is other value or blank, cells of specified range are restricted value entry. After entering data in any cell of range B1:E10, you will get a prompt box as below screenshot shown.
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I have calendar dates on one sheet 1 in a row and names of individuals in column and the corresponding data under each individual against the date has either "A" or "DNA".
I another sheet 2 I have multiple dates (duplicated) in one column and names of individuals in the next column. My criteria for the third column is if the date on this sheet matches the date on sheet 1 and the name matches the name on sheet 1 then input either "A' or "DNA" in column 3 of sheet 2 as it appears on sheet 1.
use AND function =AND(cells with dates are equal, cells with names are equal) as custom validation. You also create in same cell a dropdown list A or DNA. A or DNA are then the only allowed entries, when the dates and names match.