user on Office365, unable to modify DL

Hello Team,

I have one user who moved from Exchange 2010 to Offiec365, now we noticed he unable to modify the DL (Universal distribution Group)

He is getting below error:

"changes to the public group membership cannot be saved you do not have sufficient permission to perform this operation"

Suggest the best solution to come out from this.

Addy NadiaExpertAsked:
Who is Participating?
Veerappan SundaramSenior Technical ConsultantCommented:
As per the KB article if the mailbox is in O365, it is not possible to edit DL using outlook. You need to call O365 support Helpdesk.

Yes, if you move the mailbox back to E2K10 on-premise user can modify the DL.
But check the terms and conditions with MS for such roll back migrations from O365.

Veerappan SundaramSenior Technical ConsultantCommented:
Addy NadiaExpertAuthor Commented:
so you mean say this is by design and cannot be resolved this way
Or it can be Resolved if we move the mailbox back to Exchange 2010 ?
Mai Ali (MVP)Senior Infrastructure ConsultantCommented:
These migrated user who is owner of the distribution group can't manage it in Microsoft Exchange Online, if you want to manage the distribution group, the distribution group owners need to use on-premises tools for Exchange Server such as the following: EMC and EMS, and then we need directory synchronization or other tools to sync the changes to Office 365. you need to move all Distributed Group to office 365.
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