Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Hello, Bin Li_474
Thank you for visiting the Microsoft Community.
I wish I could handle your issues. However, since your problem is about developer, publishing them on Microsoft Learn would be better because more users post these issues there.
Here is a link to forums where you can raise specific scenarios and share ideas that can help you solve problems: Office Development - Microsoft Q&A
Click "Ask a Question".
We sincerely hope that your question will be handled properly after contacting the correct department. Thank you for your understanding.
Best wishes,
Lucia Wu - MSFT | Microsoft Community Support Specialist