我们将头撞在墙上五天，所以我想确保此问题已发布到堆栈溢出中，以解决其他面临此问题的人.特别是因为它影响了客户.

We banged our heads against a wall for five days, so I wanted to make sure this was posted on stack overflow for anyone else facing this issue. Especially since it affected customers.

在过去三天与Microsoft 24/7一起工作之后，我们终于收到消息，说这是由于EasyAuth的问题.解决方法是将其添加到功能应用程序的配置"中:

After working with Microsoft 24/7 for the last three days, we finally received word that this was due to an issue on their end with EasyAuth. The workaround was to add this in our Configuration of the function app:

WEBSITE_AUTH_AAD_BYPASS_SINGLE_TENANCY_CHECK = true

WEBSITE_AUTH_AAD_BYPASS_SINGLE_TENANCY_CHECK = true