Help IF condition with ranges

[PA_Commons]

To make my question easy let's say I have two columns A and B. So my issue is that I would like to easily format my B column with text. In my A column I have inventory numbers. Additionally some of the data I pull over already has pre-filled text in column B. I don't want that text to be changed. I only want to change empty cells.

So I tried this:

=IF(AND(B2 = "", 1000 < A2 < 2000), "Place Order", "Don't Place Order")

But I got a circular argument error. Am I on the right track here?

 

[PA_Commons]

I also want to add that I did get this to work for another simple example

=IF(A2 < 2000, "Place Order", "Don't Place Order")

But when I try to copy and paste, the cell will change appropriately for B3, B4, ect. But the result won't display accurately unless I change the number in the if function manually.

For example if I do:

=IF(A3 < 1999, "Place Order", "Don't Place Order")

Then it works for cell B3. Otherwise if I leave it unchanged and just copy it over, it won't change the result even if it should according to A3's value.