Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi Me_5555,
The warning indicates that the replication of syncing user/password to Azure Online was stopped. Because a shared mailbox doesn’t have a username with a password, the replication of syncing user/password will always fail whenever you create a shared mailbox. So please just ignore the warning and keep going on. The shared mailbox will be provisioned as usual.
Thanks,
Brook