Hi I am facing this error and tried all solution in the internat but unfotunatley did not find any soultion
Hi Hassan! This error occurs because your WhatsApp App ID already has a webhook configured elsewhere. You need to either:
• Delete the existing webhook subscription in your Meta Developer Console (Apps > Your App > WhatsApp > Configuration > Webhook fields)
• Or create a new WhatsApp app with a different App ID for this n8n workflow
Each WhatsApp app can only have one active webhook subscription at a time. Once you remove the existing webhook or use a new app, your n8n trigger should work properly.