From Solomon:
"
Officially I don’t think it’s possible.
But the alternative is very good and it’s called EvolutionAPI.
EvolutionAPI is a self-hosted solution you have to install on your server. It is an unofficial API for WhatsApp Web.
The community node is also very well built and is the most downloaded n8n community node in the world.
If you are using n8n Cloud, I’m not sure if you already have access to community nodes, but you will soon.
If my reply answers your question, please remember to mark it as a solution.
"
You can refer to: Whatsapp bot listening messages in group - #2 by n8n