I want to Integrate WhatsApp From Marketing Cloud . Can we do it ?
As of now, I fear there are no out-of-the-box functionalities to accomplish this task.
Perhaps your team can take advantage of the Journey Builder custom activities. Yet this requires a solid background in development.
Build Custom Activities and Events https://developer.salesforce.com/docs/atlas.en-us.noversion.mc-app-development.meta/mc-app-development/creating-activities.htm
As you can see below there have been ideas from other customers related to Whatsapp.
Integration With WhatsApp https://success.salesforce.com/ideaView?id=0873A000000PZZ7QAO
SALESFORCE CRM INTEGRATION WITH WHATSAPP https://success.salesforce.com/ideaView?id=0873A000000TtbxQAC
Digital Engagement WhatsApp Business Messaging FAQs https://help.salesforce.com/HTViewSolution?id=000352588
It is not possible within the standard features of Marketing Cloud. There might be 3rd party solutions allowing you to do so, but I don't have adequate knowledge of these to recommend one over the other.
You should also observe the limits WhatsApp has on the number of messages you can send during a 24 hour period.
GroupConnect only supports LINE and Facebook Messenger at this time, however, Direct Messenger is a third-party Custom Activity that enables you to send WhatsApp messages to Contacts in a Journey.