In order to have WhatsApp for Business, you need to have a valid phone number to link to your business and to WhatsApp. There are some rules regarding the number that can be used for this. If the requirements are covered you can provide the number to be connected to your WhatsApp channel, once they contact you after your application is approved.
You cannot use the following:
* Toll-free numbers
* Numbers with an IVR. (If this can be disabled for the number, then it can be okay)
* Shortcode numbers
You can use the following:
*Mobile Numbers
*Virtual Mobile Numbers
*Landline Numbers
The number also needs to be in correspondence to the following:
*The number should be able to receive calls and SMS
*You must be the owner of the number
*It needs to include a country/area code
*It should not be registered with another WhatsApp user