Domain and User Remapping
These parameters are used when Inbound Packages are remapped to a different domain. When Remap Domain is selected, the original domain name associated with Inbound Packages is replaced with the name specified in the Remap domain names in the Inbound Packages to: field.
If user information in the Inbound packages cannot be found, use the Enabling remapping to Site Owner option to use the site owner information instead of the system account information.
Enable Domain Remapping
If you are replicating content to this web application from a different Active Directory domain and want to have Replicator automatically remap content to the current domain, then select Yes under Enable domain remapping and specify the domain you want to use in the Remap domain names in inbound Packages to field.
Remapping to Site Owner
By default, Replicator tries to maintain the user accounts associated with replicated content. However, if the incoming user account cannot be found on the server, user accounts will be set to one of the following accounts: Site Collection Owner or System Account, you can select which of the two you prefer. If Site Collection Owner is selected, the user IDs that cannot be resolved are remapped to the site owner instead of the system account.
User Remapping Table
If Enable user remapping table is set to Yes, user IDs are cross referenced against the User Lookup table to resolve new user IDs associated with SharePoint entities.
Use PowerShell commands to manage entries in the User Lookup table.