Conditions determine whether the mapping is to take place. The
following steps show you how to add a condition other than the default value
of true.
From the Message Flow Mapping editor Overview, select the Target
Value that you want to edit. A small box appears at the
end of the row.
Click the box to open the Compose Mapping Expression editor. (Alternatively, from the Outline view, right-click the value that you
want to edit and click Edit Mapping to
open the Compose Mapping Expression editor.
Click Apply Condition.
Enter the condition and click OK or Apply. For
example: Source.CompanyName = 'IBM' where IBM is a literal.
If this condition is true, the mapping is made.