Hi @matigka,
To assist you effectively, could you clarify if the phone numbers will be entered by users manually or if they will select them from a predefined list in a Select field?
If it’s a Select field, you can exclude the phone numbers you don’t want by not adding them to the list options.
If users will be entering phone numbers manually and you need to exclude specific numbers, you can utilize our Conditional Logic add-on. This add-on allows you to set rules that prevent form submission when certain phone numbers are entered. For guidance on how to set up these rules, please refer to these articles:
Finally, if you want to format the phone number field check out our blog post on How to Add a Phone Field in WordPress.
