嗨DME65 ， 
$


您必须订阅Project Online License，然后将许可分配给用户。

Hi DME65, 

You have to Subscribe Project Online License and then Assign License to users.

请参阅以下文章：

https://support.office.com/en-us/article/add-project-online-to-your-office-365-account-15703ad4-08a9-40f3-9487-063a369e8f2b



https://support.office.com/en-us/article/step-1-sign-up-for-project-online-3fda2b6f-3145-46fa -af02-e39a00450ec1
$


https://support.office.com/en-us/article / step-2-add-people-to-project-online-e65c6c3b-68af-4d13-9504-5626b73e54ce



这是因为许可证问题要么您必须分配现有许可证，要么需要购买新许可证然后分配，请在此处查看链接，并提及根本原因。



https://blogs.technet.microsoft.com/ projectsupport / 2013/05/15 / project-online-getting-to-project-web-app /



最诚挚的问候， 



Lisa Chen 

https://support.office.com/en-us/article/add-project-online-to-your-office-365-account-15703ad4-08a9-40f3-9487-063a369e8f2b

https://support.office.com/en-us/article/step-1-sign-up-for-project-online-3fda2b6f-3145-46fa-af02-e39a00450ec1

https://support.office.com/en-us/article/step-2-add-people-to-project-online-e65c6c3b-68af-4d13-9504-5626b73e54ce

This is because of license issue, either you have to assign existing license or need to buy new license then assign, please go through the link here this issue and root cause is mentioned.

https://blogs.technet.microsoft.com/projectsupport/2013/05/15/project-online-getting-to-project-web-app/

Best Regards, 

Lisa Chen