DATEDIF formula; Yes/No answer

Question

I use the current formula:

=IF(DATEDIF(C1,D1,"d")>=3,"Yes","No")

If the date in D1 is 3 days or more after C1 it gives an answer of Yes.

If the date in D1 is less than 3 days after C1 it gives and answer of No.

If C1 is blank it gives an answer of Yes. It needs to say No.

How do I get it to say No without changing the other answers?

Answer 1

you just need to insert another if statementin between like this:

=IF(ISBLANK(C1),"No",IF(DATEDIF(C1,D1,"d")>=3,"Yes","No"))

it should work now.