Hi @Amir Bessaoud ,
As said slowly-changing-dimension-transformation.
The Slowly Changing Dimension transformation requires at least one business key column.
The Slowly Changing Dimension transformation does not support null business keys. If the data include rows in which the business key column is null, those rows should be removed from the data flow.
What do you mean of 'it doesn't seem to work'?
Regards,
Zoe Hui