Harvey Balls for Due Date

=IF(Status@row = "COMPLETE", "Gray", IF([DUE DATE]@row < TODAY(), "Red", IF([DUE DATE]@row <= TODAY(7), "Yellow", "Green")))

Now I will explain a technique for writing long nested IF statements

You will need 

1. Smartsheet (Works with Excel As Well)

2. Notepad or Notepad++.. A simple Text Editor/Scratchpad

Don't just jump in and start writing.. look at the logic cases

You said

1: If the invoice [Status] is marked as complete then Gray, (regardless of date)

2: If the [Due Date] is within the next 7 days, then Yellow,

3: If the [Due Date] is greater than 7 days in the future, then Green,

4: Then the [Due Date] is in the past which is Red.

So if we started with writing for green it looks like we would have a lot of checks for "IF(AND(Status@row=OPEN,[DUE DATE]=..."

But if we walk through the logic

IF#1. If it is COMPLETE.. no matter what the date then it is GREEN

Then we can assume everything else is OPEN and not bother checking for it

Then the determining Factor becomes the DUE DATE and only the DUE DATE

IF#2. If the DATE is in the past then it is RED

Then the next check becomes the 7 days.. 

But not really.. if you look at it all that is left is a yellow and another Green

Again If it is within 7 days then it is yellow.. 

If it is not yellow it must be green

Just going to spend a bit here..

See how the logic simplified and we don’t have to check for between today and 7 days because we checked for the lower limit in IF#2

And we also don’t have to have any statement to check for greater than 7 days as it is the only logic case left.

OK... So...

IF#3. If the DATE is Less than (or equal to) 7 days then YELLOW. 

Leaving only Green Left

So we took that large problem and broke it down into 3 if statements

Now lets write them

I create 3 columns for the IF Statements

Call them IF1, IF2 and IF3

In IF1 we will write our first if Statement

=IF(Status@row = "COMPLETE", "Gray", "IF2")

Pretty Simple.. and you see how the "IF2" is simply saying.. well IF2 will deal with that..

Then in IF2 we look at the next case

=IF([DUE DATE]@row < TODAY(), "Red", "IF3")

Again Simple and for more, you need to look at the next IF statement

* Note that this will show a "COMPLETE" case in the past as RED.. but don’t worry.. remember IF1 catches that and it will never get here !!

IF 3 is simply..

=IF([DUE DATE]@row <= TODAY(7), "Yellow", "Green")

* Again note you will get a yellow from the above statement for COMPLETE in the past and overdue.. but IF1 and IF2 have taken care of those

Now comes the fun part !!

Copy each of those statements into notepad

Step 1

IF1: =IF(Status@row = "COMPLETE", "Gray", "IF2")

IF2: =IF([DUE DATE]@row < TODAY(), "Red", "IF3")

IF3: =IF([DUE DATE]@row <= TODAY(7), "Yellow", "Green")

Delete the equals on everything but IF1

Step 2

IF1: =IF(Status@row = "COMPLETE", "Gray", "IF2")

IF2: IF([DUE DATE]@row < TODAY(), "Red", "IF3")

IF3: IF([DUE DATE]@row <= TODAY(7), "Yellow", "Green")

Now Looking at IF1 replace where you see with IF2 with IF2

IF1: =IF(Status@row = "COMPLETE", "Gray", IF([DUE DATE]@row < TODAY(), "Red", "IF3"))

Now we have to do the same for IF3

IF1: =IF(Status@row = "COMPLETE", "Gray", IF([DUE DATE]@row < TODAY(), "Red", IF([DUE DATE]@row <= TODAY(7), "Yellow", "Green")))

That’s it now you have the big Nested If statement that should work the first time !!

Paste it in your ANDON Column (That’s what RYG is called in Lean Manufacturing)

And you are Done !!