What is the program claiming is duplicated?
Are you entering two of the same type of forms?
Yes I am entering two of the same form with slightly different information on it.
Duplicate 1099R
What are the forms? W-2, 1099?
Are they from the same employer or bank?
What is the reason you have two?
Two 1099s.
Yes both are from the same source.
Both for making a withdraw from a 401k account. Did it two separate times.
You can combine the amounts into one entry if the codes in box 7 are the same.