Hi
Thanks for your reply.
I have tested and done some research for you. At present, it is unable to use the work account to play E-Tree.
If you want to use your work account to play the E-Tree, you can use the following methods to feedback on your opinions and suggestions to the MSN team.
You may feedback on your questions again in the Microsoft Edge browser. Open the problematic page in the Microsoft Edge browser, then use the shortcut keys "Alt" + "Shift" + "I" to open the feedback window (Note that the feedback window will capture the current screen and URL link and email address, and you can add Attachment and record your problem), enter your problem, and click "Send".