Campaigns: folder not showing + Web Services

Hey, everyone! 

So.. I've been trying to start a campaign that runs on whatsapp.

I've created a Campaign and a folder on my contacts section to use as "starting point".

• First of all, I can't select the folder that I've created as the "starting" point for my campaign (it simply doesn't show up...)
• There's no "call web service" on the business process that I'm creating (trought the Campaigns,,,

How do am I to solve these problems?

Thanks !!!