There is an article, What is a Dell Service Tag and how do I locate it?

 

Your Service Tag will be needed when going to Dell Support Site

 

Please note, when posting in the forums, your Service Tag and Express Service code are linked to your account and should NOT be posted in the forums.

 

Your Service Tag can be used on Dell's website and if asked by a Dell-Employee, click on their Blue username, on the next page, start conversation and you can provide the information privately.

 

 

Thank you,

 

 

Rick