Channels
Pick which provider this campaign uses for each channel, from the ones your platform administrator has made available. Leaving a slot on “Platform default (env)” uses the instance-wide configuration. Every change is audited.
SMS & WhatsApp
Choose which availed gateway sends this campaign's SMS and WhatsApp messages. WhatsApp can only use a WhatsApp-capable gateway.
Payments
Choose which availed gateway handles each payment rail. Each slot only lists gateways for that provider.
Choose which availed SMTP sender delivers this campaign's email.