Using Special Characters in the Target Value Expression
You can use only an asterisk (*) in the target expression, and you can prefix or suffix any number of characters to the asterisk (*) character. When you run the rule, the asterisk (*) is replaced by the resulting source value (which may or may not have its own source expression), and is concatenated to any prefix or suffix that you have specified in the target expression. For example:
Target Value:
A*
Result:
1000 = A1000
Target Value:
*_DUP
Result:
1000 = 1000_DUP