By creating click ads for WhatsApp/Facebook Messenger/Instagram Direct you can redirect your leads directly to the inbox of each of these three channels. Here are the first steps to do this:
With Ads that click to WhatsApp, you can add a Send Message button to your Facebook or Instagram ads that will open a conversation thread in the WhatsApp Business App. This allows customers to connect with your business on WhatsApp after clicking the button on your ad.
Before you begin:
Connect your WhatsApp account to your Facebook page and make yourself the admin of your Page.
Through Facebook Messenger
Ads that click to Messenger work with three objectives: Messages, Traffic, and Conversions. During ad creation, you'll create both the ad and the welcome experience people see in Messenger after they click on your ad.
Before you begin: choose your objective
The Messages objective delivers ads to people more likely to respond to your business in Messenger (recommended).
The Traffic objective is designed to send people to a Messenger conversation.
The Conversions objective should be used if you're tracking events with a Facebook pixel.
Through Instagram Direct
Ads that click to Instagram Direct are shown in Instagram Feed or Stories and allow people to start a message thread with your business by clicking on your ad. Here you can interact with people directly to complete purchases, answer questions, or offer support.
Before you begin: create an Instagram Business account.