Need help with Data Validation

[mikehk]

I need help with Data Validation.

Please see the attached file and screenshot.

Thanks.

[AliGW]

Please take a moment to re-read forum rule #1 and then amend your thread title to something that better explains your problem. You yourself seem to be unsure whether it should be data validation or conditional formatting.

Changing your thread title is not optional, which means you must change it. Thanks!

• Use concise, accurate thread titles.
  
• Your post title should describe your problem, not your anticipated solution.
• Use terms appropriate to a Google search - poor thread titles, like Please Help, Urgent, Need Help, Formula Problem, Code Problem, and Need Advice tell us nothing.
• Responding to a request to change your thread title by doing so is mandatory.

To change a title go to your first post, click EDIT then Go Advanced and change your title.

No help to be offered, please, until the OP complies with this request.