Before setting up Ads That Click To WhatsApp, connect your WhatsApp account to your Facebook page and make sure you have admin access to the Facebook page.
Follow the guidelines Create Ads that click to WhatsApp in Ads Manager | Meta Business Help Center (facebook.com).
You can also find a step-by-step guide in our Clickatell Portal User Guide here.
Also see:
SMS and two-way channels, automation, call center integration, payments – do it all with Clickatell’s Chat Commerce platform.