%RANDOM_STRING()% function Generates random character string with the length of argument. Generated character string contains upper and lower case of alphabet and number characters. Generated character string can retrieve with %RANDOM_STRING_INDEX()% function. Return valuevalue type 1st arg.integer typeThe length of random character string. This function is valid for request parameter name, request parameter value, CSV column name, CSV column value and success string at prologue, CSV upload, epilogue. %RANDOM_STRING(8)%