Below is a reading when i was trying to read about concatining strings within bpel expression builder what i need some clarification about is the part "Returns the first argument string with occurrences of characters in the second argument " And E.T.C. After this i mean i try to look at the examples they have placed in this explanation. But first off what are they trying to say here can someone explain in easier terms or give me a better example? When they say "first argument" or second "second argument" And they talking "("bar","abc","ABC") " bar would be one argument? abc would be second ABC would be third Returns the first argument string with occurrences of characters in the second argument string replaced by the character at the corresponding position in the third argument string. For example, translate("bar","abc","ABC") returns the string BAr. If there is a character in the second argument string with no character at a corresponding position in the third argument string (because the second argument string is longer than the third argument string), then occurrences of that character in the first argument string are removed. For example, translate("--aaa--","abc-","ABC") returns "AAA". If a character occurs more than once in the second argument string, then the first occurrence determines the replacement character. If the third argument string is longer than the second argument string, then excess characters are ignored. Learning in progress..........