Any Note so that the External Equipment Type accepts the "Ñ" since it doesn't let us?

We are creating teams with outer fig ranges from "AAAAA - ZZZZZZ" but we get to the 4th quality of the missive "Ñ" and it does not fto america beforehand due to the fact that it gives america the error: IS045, wherever we person a antithetic character, is determination a enactment for Mexico?