This article is informational only.
You may be unable to migrate a mailbox after the cloud account is created and licensed.
Get user settings for email address: John.firstname.lastname@example.org', autodiscover url: 'https://autodiscover-...
Processing message F9558FF1DC8CF2479724D1F6F964E7560005650C1407, message class: IPM.Microsoft.OOF.UserOofSettings, subject: (null)
Trace Get user settings results :
Error System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
at Dell.MigrationManagerForExchange.General.Ews.Autodiscover.GetEwsUrl(String emailAddress, NetworkCredential
It appears there is an issue with the accounts as seen by "message class: IPM.Microsoft.OOF.UserOofSettings, subject: (null)".
The null suggests something is missing from the user settings.