Result string replacement characters are characters you choose as substitute characters in the masked data. When you configure result string replacement characters, the Data Masking transformation replaces characters in the source string with the result string replacement characters. To avoid generating the same output for different input values, configure a wide range of substitute characters, or mask only a few source characters. The position of each character in the string does not matter.
Select one of the following options for result string replacement characters:
Use Only
Mask the source with only the characters you define as result string replacement characters. For example, if you enter the characters A, B, and c, the Data Masking transformation replaces every character in the source column with an A, B, or c. The word “horse” might be replaced with “BAcBA.”
Use All Except
Mask the source with any characters except the characters you define as result string replacement characters. For example, if you enter A, B, and c result string replacement characters, the masked data never has the characters A, B, or c.