SharePoint Online Webhook with ngrok “Access Denied”

Question

I am trying to follow bellow documentation of Microsoft https://docs.microsoft.com/en-us/sharepoint/dev/apis/webhooks/get-started-webhooks

I have given below permission azure app

But when I send any POST request it gives me access denied

But my GET request always run without any error

My ngrok also works fine

I feel that my token is not passing through while POST request. Can somebody guide me.

Answer 1

Most likely you should add more permissions for your Azure AD app, AllSites.Manage or even AllSites.FullControl. Read\Write is more about the list items and not webhooks.