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Debugging 
You can simulate posting before you post data into InfoProviders from the PSA or ALE inbound processing, or if the update to the InfoProviders failed during the load process. The debug option for the transformation rules supports you in error finding.
For more
information, see
Update Simulation in
the Monitor
You can execute a standard data transfer process in debug mode.
For more
information, see
Creating Data Transfer
Processes.