Get your taxes done using TurboTax

are you confusing the 5 digit e-file pin (anything you want) with the 6-digit IRS ID Pin (generated by the IRS, changes every year).  The 6 digit one is the one causing your return to reject, it needs to be input under Other Tax Situations, and you need to get your latest one for calendar year 2025 from your account/profile on the IRS website.