I have a worksheet (WORKSHEET 1) with over 1,000 static serial numbers.
On a another worksheet (WORKSHEET 2) I have approximately 100 different cells where serial numbers are entered.
I want to create a formula within the cells on WORKSHEET 2 that will check against the 1,000 serial numbers in WORKSHEET 1.
If any of the static serial numbers from WORKSHEET 1 are entered into any of the cells in WORKSHEET 2 then I would like the cell to highlight, display a message, etc... to alert the person entering the data to stop and flag the serial number and move on.
Solved by D. Y. in 20 mins