Metalogix Content Matrix User Mappings

To create user mappings to import to Content Matrix while doing a migration, create an XML file with the following format:

<Mappings>
<Mapping Source="i:0#.w|contoso\testuser" Target="i:0#.f|membership|testuser@contoso.com" />
</Mappings>


Repeat the Mapping Source for each user that you want to import.
I suggest using an Excel spreadsheet to easily format this, and then paste into a text editor and save as an XML file.