"^[A-Z]{2}.{0,10}$" . "Code composed of country code and alphanumeric OP code." . "1.2.0.0.0.2" . . . . . "1"^^ . "uopid (1.2.0.0.0.2): This error is due to having more than one UOPID or to having a value that is not a string that follows the pattern [AA+AAAAAAAAAA]."@en .