My six digit number was invalid.

[mesquitebean]

There's not enough into to be sure what you are talking about.   

Are you trying to file and referring to the 6-digit email verification code when filing?

Or are you referring to a 6-digit IP PIN (Identity Protection PIN) from the IRS?

Or something else?

If you efiled, and then the return was rejected, please post the rejection error code or message.