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RegEx validation for numeric value only

I have one text field.
I want a RegEx validation so that user only will be able to fill numeric value (no any Character nor any special symbol).


Try this formula :-

NOT(REGEX(Ur_fieldname__c , "[0-9]{3}"))
In flower braces give the limit how many numbers you want to enter exactly.i have given 3 numbers.

Hi Nikhi,


Use this below validation rule to accept only numeric value,


NOT(REGEX( Name ,"^[a-z A-Z]*$"))


Where Name is your Field Name.


Mark this solution if you found as Best and give kudos...


Thanks and Regards,

Arunkumar | Salesforce Certified Developer

Fabio Costa 21Fabio Costa 21
NOT(REGEX( Name ,"^[a-z A-Z]*$")) has not worked for me.
See the prints:
User-added imageUser-added image