Hi,
Need Help, 

1.Can i able to do whatsapp integration with out having the Facebook business manager ID and its Confirmation.
2. If it is Possible  through RestAPI, how can i access the Whatsapp bussiness API(Any Links)
3. I Have gone through the Setup In Whatsapp Mesaaging( https://help.salesforce.com/articleView?id=messaging_set_up_whatsapp.htm&type=5 (https://help.salesforce.com/articleView?id=messaging_set_up_whatsapp.htm&type=5)) and this editions is Paid.

This is have a POC to me and need to completed . Please help me guys 


Thank You
Ranjith kumar M