Custom Validators

Custom validation features are used to define validation rules using Regular Expressions. All these custom validators will be available in the Validations drop-down to set validations when creating or editing product fields.

To create new custom validators:

1. Navigate to the Advanced Settings tab (WooCommerce → Extra Product Option → Advanced Settings)
   

2. From the sections Custom validators, create new validators by providing all the required values.

   
   
   

   • Validator Label
     The display name for the validation rule
     
     
   • Validator Pattern
     A regular expression, which is used to match a valid input. The regular expression must be prefixed with /^ and suffixed with $/. Eg: /^[0-9]{5}$/

    

   • Validator Message
     The message to be displayed when the validation fails. Use %s to include the field name in the validation messages.
     
     
3. •  
4.  Once added required validators, click on the Save changes button.
5. The newly created validators will be available to choose from the Validations drop-down.