For Screen 24, that's where you enter the nondeductible tIRA contributions (and duplicate-enter in the override "nondeductible contributions").
For Screen 13.1, that where you enter the 1099-R and scroll down to input that it was a conversion.
It takes a LOT of inputs (compared to other tax items). Pay attention to the detail review of form 8606 and your statements/worksheets.
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