Forum Discussion
Migrating On-Premises Distribution Lists to Exchange Online
TonyRedmond - this is an old thread I know but we are a large organization looking to do this primarily so that we can give control of managing DLs back to the end users. If you are syncing DLs from on prem to EXO, then users cannot modify those DLs any longer once their mailbox has been moved to EXO. With thousands of DLs though, this will be a monumental task.
Richard_Scar Yes, it's a problem that hasn't gone away. I guess this issue is that every organization moves at their own pace and in their own way, so it's hard to come up with a one-size fits all approach to migrating on-premises DLs to EXO DLs. In fact, some of the DLs might end up as Microsoft 365 Groups in the cloud. So that's what people end up writing code to move DLs or do it manually... but with thousands of DLs, it's a headache.
TonyRedmond Yeah not to mention we have many, many nested DLs too. So if we move a DL with nested DLs in it, all of those nested DLs must have already been moved I would assume. Then re-added back once the original DL has been moved. Getting a headache just thinking about it lol.