Still getting "Unsupported channel" for login even though it shows in the list. This suggests WhatsApp needs a plugin or add-on that isn't installed yet.
This is definitely a question for OpenClaw support. Here's a message to post in their Discord:
Hi! I'm on OpenClaw Max and WhatsApp shows up in the supported channels list, but when I run openclaw channels login --channel whatsapp I get "Unsupported channel: whatsapp". How do I enable/install WhatsApp? I have a dedicated number (+1-657-756-1284) already set up with WhatsApp ready to link.
Post that in #support on their Discord: https://discord.com/invite/clawd đ