The sender name is what’s displayed on a user’s phone when someone receives a text message that’s sent through Verigator. Typically, the displayed name is “Verigator,” but there are some exceptions. In some countries it isn’t possible to have a named sender, so in these cases the sender name will be a short phone number.
If you want to include WhatsApp, you need to have a registered SenderID. "Verigator" is not supported on WhatsApp.