RegEx custom field allows users to validate a field by matching its content against a specified regular expression.
It is useful for verifying Email address, phone numbers, zip codes & more.
Configuring the Regular Expression (RegEx) Custom Field
Search the Custom field name, Click on the “Three“ dots
Go to contexts & default value. User will see a page similar to the following example:
Click on the Edit custom field config to configure the Regular expression.
Click the Submit button, and the Regular Expression will be added to the configuration.