I entered state as NY in error for 1099-R Payer. Should be PA. SO it says invalid ZIP..but it wont let me edit the state. How can I fix this?

[ToddL]

You will have to delete the Form 1099-R and re-enter it in the 1099-R interview.

Why does this happen? Once you enter (or import or transfer) certain information, the program creates or updates forms and worksheets that use that information. In many cases, you cannot "change" that information in the interview process - in a manner of speaking, it has been "written in ink" on the forms. You have to delete the form and any associated worksheets in order to correct

See: How do I delete forms in TurboTax Online?

After deleting the Form 1099-R, log out of the program. When you log back in, use the Delete a Form tool (List of Forms in My Return) to confirm  it was removed from your return. Then, go back to the Retirement Income and Social Security interview to add the 1099-R back in.