You are migrating Financial Data into your system using Migration of Accounting transaction Data and would like to clarify some of the basic questions
Is it possible to create more than one Process Unit in Migration of Accounting transaction Data?
Yes. You can create multiple units per company to migrate the Accounting information but user needs to make sure that the records should be unique. That is, you cannot migrate a same record in different Units.
In this case, you must ensure that the main and auxiliary books are matched . They can also be seen using the booking previews on each migration object .
Why Change Immediately button is disabled for Migration of Accounting transaction Data?
Change Immediate is disabled because, Accounting Transaction is critical information that is being migrated into the system and directly changes into the system will make inconsistencies or mismatch with the existing records. Hence, you need to create a new Change Project to use this activity.
KBA , AP-RC-BCT , Business Config. Tools (SAP Business ByDesign , How To