Upgrading a Distribution Group fails

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Microsoft 365 Groups are a more modern way to work in teams and to distribute email messages. We still have the option to use classic distribution groups.

Exchange Online provides us with an option to upgrade classic distribution groups to Unified Groups, which is the Exchange Online term for Microsoft 365 Groups.

When you try to upgrade an existing distribution group, you might receive an error.

PS C:> Upgrade-DistributionGroup -DlIdentities info@varunagroup.deRunspaceId                      : b7f07a8b-cec0-45e8-a50d-00c278d48d76dlIdentity                      : info@varunagroup.deErrorReason                     : The specified distribution group is not eligible to be upgraded or you are not                                  allowed to upgrade this distribution group.ExternalDirectoryObjectId       : 0352193a-XXXXSuccessfullySubmittedForUpgrade : FalseIdentity                        :IsValid                         : FalseObjectState                     : Unchanged


When you get this error, verify that the distribution group owner is a licensed user. While there is no such requirement for a classic distribution group, the owner of a Unified Group must be a licensed user. After adjusting the group owner the upgrade is successful.

PS C:> Upgrade-DistributionGroup -DlIdentities info@Varunagroup.deRunspaceId                      : b7f07a8b-cec0-45e8-a50d-00c278d48d76dlIdentity                      : info@varunagroup.deErrorReason                     :ExternalDirectoryObjectId       : 0352193a-1XXXXSuccessfullySubmittedForUpgrade : TrueIdentity                        :IsValid                         : TrueObjectState                     : Changed




Enjoy Exchange Online.

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