Of the many new features introduced in Ax 2012 R2 CU7, one is the ability to use the Data Import Export Framework (DIXF) to copy data between companies.
From the DIXF menu, select Copy entity data between companies.
Enter a name & description for the processing group.
Select the entities to include in the processing group.
Select the source company, and destination companies.
The process can run interactively, or for larger data sets, in batch.
More detail on the new DIXF features here.
The DIXF can also be used to export and import data between Ax systems, as can the Test Data Transfer Tool.
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