Question

I am trying to track IDs within several different sheets and I want to be able to give a True value for one criteria and false for another. Here is my pseudo code for what I am trying to accomplish.

IF sheet1.A1.value EXISTS AND DOES NOT EXIST IN sheet2.A:A OR sheet3.A:A
THEN RETURN "true"
ELSE RETURN "false"

Answer 1

You could also do this with just an excel formula like this:

=IF(AND(len('Sheet1'!A1)>0 , ISERROR(MATCH('Sheet1'!A1,'Sheet2'!A:A,0)), ISERROR(MATCH('Sheet1'!A1,'Sheet3'!A:A,0))) , "True", "False")

This Reads:

• If the following three condiitons are met, then True, otherwise False
• Condition 1: Sheet1’s Cell A1 exists
  • Check if the length of any value in it is greater than 0
• Condition 2: Sheet1’s Cell A1 not in Sheet 2’s column A
  • Run a match formula to check this
  • If the match returns an error, then it was not found
• Condition 3
  • Run a match formula to check this
  • If the match returns an error, then it was not found