Using macro that generates a random number
You can use a macro that generates a random number, called RANDOM(X). This random number can contain letters and numbers. You decide how many characters long the number should be by specifying the length of the field instead of X in RANDOM(X). You can use this random number macro only as an input value on a data service, and must be wrapped inside {} to work. You can also use RANDOM with a combination of a prefix, such as FSH-, placed before, after, or in between these macros.