B2C Graph API 更新用户、UserPrincipalName 作为电子邮件：URL 不支持加号 (+) 登录电子邮件？

Question

I was testing a PATCH request to the Graph API here: https://graph.microsoft.com/v1.0/users/{id | userPrincipalName} https://graph.microsoft.com/v1.0/users/{id | userPrincipalName} to update accountEnabled attribute.

The documentation states that this is the format: https://docs.microsoft.com/en-us/graph/api/user-update?view=graph-rest-1.0&tabs=http

I did a POST request earlier and successfully made a user with userPrincipalName as an email (within identities array for B2C user), that is something like emailaddress+1@gmail.com

When I try to put that in the URL as the userPrincipalName , I get unknownError back from the graph API. After some experimenting, I found it was the + in the URL which would make sense. However, a UrlEncode to %2b for + also does not work. Encoding the @ symbol even throws an error by the API?

Is this not supported by the API URL? Within the B2C Users panel in Azure portal, all I see for user principal name is that email I made them with that original POST request. The only solution I can think of is to not allow users to sign up in the first place with that + sign in their email. Using User/object ID is not possible in my case.

Answer 1

Allowed characters for userPrincipalName are A - Z , a - z , 0 - 9 , ' . - _ ! # ^ ~ ' . - _ ! # ^ ~ ' . - _ ! # ^ ~ . Read more about username policies in the documentation .

It would be interesting to know if indeed you were able to create a user with a character in the userPrincipalName that is not allowed or if the API ignored/removed/converted the + sign. Can you get the Id of the user by searching on the Azure Portal? Then you can Get the user and see the value of userPrincipalName .