Determine where to store the migrated data

The goal of xDB Data Migration Tool is to make data from MongoDB available in xDB. In order to store data in xDB there has to be a data structure to hold the data.

In xDB, there are several data structures available, depending on the type of data you are dealing with.

• Contacts - identifiers and facets
• Interactions - facets and events

For this example, a custom contact facet is needed.