How to validate the field to allow only numbers,(comma).(dot) Please suggest if script is needed

[Archana23]

How to validate the field to allow only numbers,(comma).(dot)

Please suggest if script is needed

[Ravi Chandra_K]

Yes, a script is needed. (On change client script)

You have to define a regular expression and then

you can check with variable.match(regex)

Please refer the below thread 

https://www.servicenow.com/community/developer-forum/field-should-only-have-at-least-1-letter-and-1-...

Please mark the answer as helpful and correct if helped. 

Kind Regards,

Ravi Chandra