# Transformation (job entry)

The Transformation entry runs a previously-defined transformation within a job. This entry is the access point from your job to your ETL activity (transformation).

An example of a common job includes getting FTP files, checking the existence of a necessary target database table, running a transformation that populates that table, and emailing an error log if a transformation fails. For this example, the Transformation entry defines which transformation to run to populate the table.


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