I was wondering how to register a phone number in WhatsApp cloud API.
I added a business phone number on the WhatsApp administrator page, and it says that the status of the phone number is 'waiting' and requires phone number registration. I'm trying to follow the guide, so should I follow the document guide 'Migration from On-premises API to Cloud API'? Is there any way to proceed with phone number registration and certificate registration on the WhatsApp administrator page without that process? I'm going to send an authentication message to my customers in different countries via WhatsApp. At this time, I'd like to conduct a shipping test to check the actual billing system, so I'd appreciate it if you could give me a guide on how to register a business phone number. Please reply as soon as possible.