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How to use data validation to limit number of digits while typing in Excel?

Author: Sun Last Modified: 2020-09-02

If you just want the users type characters in a limited number in Excel cell, for example, only can type 7-10 number of characters in cells, how can you do? In this article, I am going to talk about limiting the number of digits by using Data Validation function in Excel.

Use Data Validation function to limit number of digits in Excel


Use Data Validation function to limit number of digits in Excel

If you just want users to type 7-digit or 10-digit string only in cells, do as these:

1. Select the cells you want to limit digits, click Data > Data Validations > Data Validation.
doc data validation number of digits 1

2. Under Settings tab, select Custom from Allow drop-down list, then type this formula =OR(LEN(A1)=7,LEN(A1)=10) into Formula textbox.
doc data validation number of digits 2

3. Click OK. Now the selected cells only can type 7-digit string or 10-digit string. Or it pops out a dialog to warn you.
doc data validation number of digits 3

Note: If you just want users to type number strings, use this formula =OR(AND(LEN(A1)=7,LEN(A1)=10),ISNUMBER(A1)).

If you only allow users typing 7-10 digits of strings in cells, you can do as these:

1. Select the cells you want to limit digits, click Data > Data Validations > Data Validation.

2. Under the Settings tab, select Text length from Allow drop-down list, choose between in Data drop-down list, in Minimum and Maximum textbox, type the number you use.
doc data validation number of digits 4

3. Click OK. Now the selected cells only can type strings in digits between 7 and 10.
doc data validation number of digits 5

Tip: if you want to pop a dialog out with specific warning to remind users, you can do as these:

In the Data Validation dialog, under Error Alert tab, type the reminder in the Error message textbox.
doc data validation number of digits 6

Then click OK, while users enter the invalidation data, the message pops out to remind users type right data.
doc data validation number of digits 7


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