MATCHES
Description
Returns 'Yes' if the specified string matches the specified regular expression
Syntax
MATCHES (text, regex)
Cannot be used in the condition of a FIND action.
Parameters
Attribute of the Plain Text type or string constant or calculation producing text and a regular expression
Returns
Yes/No: 'Yes' if the text matches the regular expression.
Example
IF MATCHES (Customer.PhoneNo, '[0-9]') = 'No' THEN ...