This article is applied for Office 365 or Exchange in the source. For performance reason, the platform does not migrate the events older than 3 years. Here you find the instructions, how to verify the creatio date of an event in Outlook.

Steps

To check the date of creation:

    1. Open an Outlook application of the impacted user
    2. Click on Folders
    3. Choose the Calendar
    4. Go to View and change the view to List
    5. Click on ‘View Settings’, then ‘Columns…’
    6. Add a new column ‘Created’ and click on OK twice.


    If the date of creation is 3 years older than the date of the migration, such event will be ignored.