web
You’re offline. This is a read only version of the page.
close
Skip to main content
News and Announcements icon
Community site session details

Community site session details

Session Id :
Dynamics 365 Community / Forums / Customer experience | Sales, Customer Insights,... / Guest User Login Email...
Customer experience | Sales, Customer Insights,...
Answered

Guest User Login Email Address and Email Synchronization

(0) ShareShare
ReportReport
Posted on by akhil05 5

Hi Everyone,

I have a slight confusion between the Username and Email address of a Guest User in Dynamics 365 CRM. Here the Username (username#ext#@company1.onmicrosoft.com) is not matching with the primary email address(username@company2.com) of Guest users in CRM. So, the end users instead of using the username to login into CRM, they have been using their primary email address to login.

So Issues are :

1. After Logging in they are unable to see the Power bi Dashboards in CRM and I believe they have to use the username to login instead of primary email address.

2. The (Incoming email) and (Appointments, tasks contacts) in mailbox are failing and I believe this is because of the mismatch between username and primary email address.

Please let me know your suggestions. Thank you!


I have the same question (0)
  • akhil05 Profile Picture
    akhil05 5 on at
    RE: Guest User Login Email Address and Email Synchronization

    So, Do you know any solution on how to solve the mailbox issue with Guest users when the username and primary email are not matching.

    I will check whether the Dashboards are shared properly or not.

    Coming to Username, It looks something like this:

    Thanks for the reply.

  • Suggested answer
    PerezAguiar Profile Picture
    PerezAguiar Microsoft Employee on at
    RE: Guest User Login Email Address and Email Synchronization

    Hey.

    According to learn.microsoft.com/.../invite-users-azure-active-directory-b2b-collaboration:

    - Users should login with their primary email address.  I don't think the '#' character would be allowed as input.

    - There are some limitations with using the mailbox functionalities:

    Invited users will not be able to use their own tenant email addresses when performing email related transactions in the host environment.

    - With regards to the PowerBI, you should indicate more details on the issue. Have you checked if they're correctly shared?

    Regards,

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

News and Announcements

Dynamics 365 Community Calls Return
Join experts in person to explore low code and AI agents at the Power Platform Community Conference sponsored by Microsoft
Responsible AI policies for the Community

Quick Links

Responsible AI policies

As AI tools become more common, we’re introducing a Responsible AI Use…

Andrés Arias – Community Spotlight

We are honored to recognize Andrés Arias as our Community Spotlight honoree for…

Congratulations to the August Top 10 Community Leaders!

These are the community rock stars!

Leaderboard > Customer experience | Sales, Customer Insights, CRM

#1
Daniyal Khaleel Profile Picture

Daniyal Khaleel 143

#2
DAnny3211 Profile Picture

DAnny3211 134

#3
Abhilash Warrier Profile Picture

Abhilash Warrier 70 Super User 2025 Season 2

Last 30 days Overall leaderboard

Featured topics

Hide selecting Contact for potential customer when creating quote

Product updates

Dynamics 365 release plans