Here is the start of a formula I need for document tracking. The first part
works, of course, but I also need to figure out how to get the second
condition to work:

=IF(E2="","",DAYS360(E2,TODAY())), IF(H2=???????, DAYS360(H2, E2))

This is what it needs to do:
If E2 has a date in it, I need it to calculate the DAYS360 function as
above, if there's nothing, I need it to leave the cell blank (that part of
the formula is functional)
However, it will continue doing that calculation forever because "tomorrow
never comes," right?! HAHA. So, I need it to perform a different DAYS360
function if cell H2 has a date in it (the only thing that will go in it).
I hope this makes sense!