How to apply for WhatsApp Business API?

The process is very simple. All you have to do is to make sure that you meet all the requirements that can be found in Meta’s documentation. Then you can create an account with OWA in 5 to 15 mins by following the instructions. Keep in mind that WhatsApp and Meta have applied a strict business and commerce policy that businesses that want to get access to the API should abide by. The WhatsApp API is not made to send thousands of promotional and spammy messages to strangers. Therefore, it is not a suitable tool to contact cold leads. In a matter of fact, Meta might penalize you by limiting the number of messages you can send or completely blocking your number.

Moreover, the API is not a messaging interface like the WhatsApp Business App. This means that any number that is used for the API cannot be used with another WhatsApp account and if businesses want to send and receive messages through the API, they should develop their own messaging solution or get it from an independent software vendor.