Efile Error Code 121

Can anyone help me with this error please.

“Please carefully complete both identification fields and try again. Please be reminded that you must use your most recent information regardless of the tax year of the return you are attempting to transmit.”

Have not seen that error before, but I would recommend that you check your efile number and password has been updated correctly in taxcycle

Here is some discussion about that error code from a past year.

Password on transmission does not match our records.
EFILE password in Options under EFILE credentials is not correct.


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