Use a master data entity to define:
Which table holds master data.
Who sends this master data.
Where you send this master data to.
How you select the right master record.
Prerequisites:
Organization hierarchy setup
Company setup
Connectivity Studio setup
For a master data entity, you can:
Initialize master records for an existing source company and an existing target company. Where the data already exists in both the source company and the target company.
Initialize master data in a new company.