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2 Columns.

C2 | D2  
C3 | D3  
C4 | D4  
C5 | D5  

I want it to apply conditional formatting to D2 if C2 has information in it, and D2 is blank. (will be a date). If C2 is empty, then D2 should have no formatting. I don't want D2 to be formatted if C2 has text, and D2 has text.

Picture: I would want it to look like this:

Example

15

The ISBLANK formula should serve your purpose well.

Create a new rule in the conditional formatting menu. Set the range of your rule to D2:D so that the formatting is applied to column D. Then, in the Condition dropdown menu, select "Custom formula is." In the input field, enter NOT(ISBLANK(C2:C)). (The NOT formula negates the value returned by its argument. Since you want the formatting rule to apply if the corresponding cell in column C is NOT empty, you will need to use this.) Finally, set the formatting to suit your needs.

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    Worked very well. I ended up using " =AND(NOT(ISBLANK(C2:C)),(ISBLANK(D2:D))) ". Because I didn't want the D column to be formatted if it had text.(Forgot to include that in my message). Thank you very much :) – Aethroz Oct 7 '15 at 18:48
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    Critical to have the = in front of the conditional statement. So =NOT(ISBLANK(C2:C)) works, but NOT(ISBLANK(C2:C)) will not. Hopefully saves some people some time! Google Sheets is so powerful but definitely has some documentation concerns especially for folks coming from Excel. – Shane Oct 23 '17 at 12:02
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    UPDATE - Now conditional formatting has a "Cell is empty" condition as a provided option. – Matt Jun 20 '18 at 15:24
  • But remember, sometimes a cell isn't quite empty, and isn't quite blank, but still might be =="" so C2:C=="" might be a good check when the others don't seem to work. – Victoria Aug 9 '18 at 5:29

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