To start the integration process, the following requirements are needed:
- A Meta Business Manager account with an associated payment method.
- A phone number to associate with the WhatsApp API.
Regarding the Meta Business Manager, it must be completed with the company's business data in the “Business Information” section, to which the WhatsApp API account will be associated. Among the mandatory data, we must include the company's website. The website must be active and accessible (without this requirement, the WhatsApp API account will be disabled within a few hours).
Verification of the Meta Business Manager is not mandatory. It allows overcoming some limits in the number of outgoing conversations from a single WhatsApp account and can be done after the line activation.
For more information regarding business verification, click here
Regarding the phone number to be associated with WhatsApp Cloud API, it can be a mobile or landline number that can receive an SMS or verification call and that is not associated with any WhatsApp / WhatsApp Business account at the time of activation.
For more information on using a number already in use on WhatsApp / WhatsApp Business, carefully read this guide.