Unique Info About How To Prevent Duplicate Entry In Excel

Choose validation from the data menu.

How to prevent duplicate entry in excel. My data source is an excel file. In the allow drop down select custom. Select the range that you want to prevent duplicate entries.

Select the range of cells in which you want to prevent duplicate values. Now we need to prevent duplicate names in the name column. Click on the first cell with data keeping the shift keyboard button pressed and then select the last cell.

In the example below i want to prevent any duplicate number in the first column if it has a y in the second. So for the numbers 2 and 5 i would get an alert however the others would be fine. With kutools for excel, you can prevent duplicate entries with one click.

Go to the data tab. Select data validation from the drop down menu. This video demonstrates how to prevent duplicate entries in a column.

With kutools for excel, you can prevent duplicate entries with one click. By reema in forum access tables & databases replies:. By stoey in forum excel programming / vba / macros replies:

In the data validation window,. Private sub commandbutton1_click() dim c as integer, i as integer, checkcolumn as integer dim x as long dim checkduplicate as string dim y as worksheet set y =. Press the data validation button.