Prerequisites
Ensure that Customizing is complete when the data is transferred. Changes to system settings may lead to errors in the data transfer, and therefore considerable manual post-processing.

Begin with only a few data records. If the transfer was executed successfully, you can then test the transfer with a larger amount of data.
Check the system resources (table size, database capacity) to avoid any unforeseen problems.
Procedure
The data transfer is either executed in batch input or in direct input.

You can check whether the data transfer was successful in the following way:
Result
You have successfully tested the data transfer.