Principle business code missing on Proconnect

[istration]

I tried entering the principle business code of 454110 which is valid, but Proconnect doesn't have it. They had it for 2021 however.

[George4Tacks]

I believe the codes are drawn from the instructions for the particular form, not from NCIS. 

[TaxGuyBill]

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@istration wrote:

I tried entering the principle business code of 454110 which is valid,

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Where do you see that listed in the list of codes in the Instructions?

[istration]

I looked them up on the IRS website.

[istration]

I found the code on the IRS website, it seems to be an issue with ProConnect this year.