Been working on this $a1 = '1|2' Local $ab1 = StringSplit($a1, "|") _ArrayDisplay($ab1) $b1 = '3|4' Local $ab2 = StringSplit($b1, "|") _ArrayDisplay($ab2) $c1 = _ArrayConcatenate($ab1,$ab2) ConsoleWrite( @error & @CRLF) _ArrayDisplay($c1) didnt work so then this #include <Array.au3> $a1 = '1|2' Local $ab1 = StringSplit($a1, "|") _ArrayDisplay($ab1) $b1 = '3|4' Local $ab2 = StringSplit($b1, "|") _ArrayDisplay($ab2) ;~ $c1 = _ArrayConcatenate($ab1,$ab2) ;~ ConsoleWrite( @error &a