4,471 votesworking on it · AdminBarbara Feldon (Office 365 Customer Experience, Microsoft Office 365) responded
Great news! This capability is included in in the recently updated Office 365 Roadmap entry: “Admin App Launcher Customization Tools” which can be found in the “In Development” section.
Thanks for your feedback. We are currently thinking about this. Can you please let us know what scenarios your organization uses shared mailboxes for and what options do you use. This will help us.
We are working on providing the ability to edit the email addresses (both primary and secondary) associated with an O365 group. The ability to modify the SharePoint site URL is still being considered.
Roadmap item: https://products.office.com/en-US/business/office-365-roadmap?filters=&freeformsearch=27891&featureid=27891
675 votesRob M. commented
This is still a big problem.
I've tried the workaround below and it still fails for me.