Authenticate with OAuth failing 403 forbidden

Technical Q&A
1

Hi, I’m working through the documentation here: https://shopify.dev/tutorials/authenticate-with-oauth#step-1-get-client-credentials

In step 2 I create the redirect URL like this:

https://testwebar.myshopify.com.myshopify.com/admin/oauth/authorize?client_id=1b563b771bbbffb07c59dadd174e7818&scope=read_customers&redirect_uri=https://192.168.1.134:3000/create&state=1234&grant_options[]=

However, this always fails with error code 403 forbidden and I wonder why. From what I can see in the documentation the redirect URL I’ve created looks correct. Can you please advise what I’m missing?

Kind regards Thorsten Bux