Hi
彭柏瑜,
Thank you for reaching out to us on Microsoft Q&A forum.
We understand from your question that you are unable to access that URL. We have tried that from our end and have been able to access it and successfully complete the exercise.
There is one more thing I would like to bring to your notice that the deployment may take more time than that mentioned in the document which is 15 minutes. So kindly wait till the deployment is completed.
If the issue persists, please don't hesitate to reach out to us with the screenshots (Note: please hide all your personal details before posting).
Please Accept Answer if it was helpful to you.