Metalogix Content Matrix allows you to create special columns that are linked to a SharePoint External Data (BCS) source. With these columns users can attribute external items to documents prior to migration. At migration time, these terms will be applied to the migrated documents.
Overview of Business Connectivity Services (BCS) in SharePoint 2010 and Later
Business Connectivity Services (also referred to as External Data) is a feature introduced in SharePoint 2010 that enables the use of content from external data sources in SharePoint. Metalogix Content Matrix supports retrieving External Items from a SharePoint BCS data source, attributing those items to source documents, then applying those terms in an existing External Data Column when content is migrated.
Currently, only connections over the SharePoint Object Model (OM) are supported. This includes connections using the Local OM (by installing locally on the SharePoint server), or connections using the Extensions Web Service (remote OM connections).
Applying external items to migrated documents involves the following tasks:
A.Create a new SharePoint External Data (BCS) column to your source Metabase project. This column will be associated with a pre-defined SharePoint External Content Type.
B.Use the external data column to attribute terms to your documents.
C.When pasting your documents to your target, map the source Taxonomy column to an existing External Data column on SharePoint.