Here is the response from the ticket:
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"Action Plan:
As I checked the service request, I understand you are facing issue with the display name showing incorrect in Yammer and I also see that you have explored regarding this same issue on Microsoft tech community forum before creating the support ticket, I really appreciate for that.
Yes, we have received multiple tickets regarding this issue in past, however what has been isolated is that this issue occurs in below scenario.
- Other users sending Invites to the affected users from Mobile App, and since the user has not joined in Yammer it creates a pending user in Yammer until the user joins. If the user clicks on the invitation Email, instead of browsing to office.com and clicking on Yammer tile, since when the user clicks on Yammer tile, the profile attribute sync is initiated from Office 365 to Yammer.
- Also we have seen if the users are imported in Yammer using bulk update feature before actual user sings in to Yammer and creates own profile than this issue arises, since when the actual user logs in the profile is not correctly Mapped.
- User not singing in to Yammer correctly instead browsing to office.com and clicking on Yammer tile, directly logging to Yammer from Yammer.com URL / Mobile App, since this doesn't initiates a profile attribute sync from office 365
Since we have received multiple issues for Profile attribute sync this has been already highlighted to the product team, currently they are planning to sync the Display name of office 365 / Azure AD to Yammer as currently the First name and Last name is syncing which creates confusion.
However we don't have any specific timeline as when this will be in production, I hope you can understand that bringing the changes to Product globally may take some time."
