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The formula in this example checks that the entry in cell F2 is equal to the entry without spaces.There is a built-in rule setting for Dates, where you can set a date range for the data entry cells.When you create a formatted Excel table, you can use data validation to prevent duplicates.In this example, an Employee ID is entered in the first column, and each ID must be unique. When you create a formatted Excel table, you can use data validation to prevent duplicates within a column.Next, he offers handy tips to ensure data is entered correctly the first time, using the Auto Fill feature and using Auto Correct shortcut codes for frequently used entries.Dennis provides easy ways to validate your data, which is particularly helpful when multiple team members are contributing to the same spreadsheet.
And even a small error can have big consequences, throwing off important calculations or transmitting incorrect information to your team.
The SUBSTITUTE function replaces each space character - " " - with an empty string - "" The formula in this example checks that the entry in cell B2 is equal to the entry without spaces. The LEN function counts the number of characters entered in cell D2, and compares that to the number of characters after SUBSTITUTE removes the space characters.
You can prevent users from adding ANY spaces in the cell -- whether the entry is text, numbers, or a combination of both. The FIND function looks for the space character - " " - and the ISERROR function result is TRUE, if the space character is not found.
Use a custom rule to prevent the same number from being entered twice, in those cells.
NOTE: The range is entered as an absolute reference -- $B:$B -- so it stays the same, in all of the cells with that custom rule.