Replaced OEM Mobo and entered wrong Service Tag

Personally replaced the Motherboard because I bricked my old one trying to flash the BIOS.  Found an OEM replacement, installed it, everything is running great.  During the setup process, I accidentally entered in the Wrong Service Tag when prompted in the CMOS Setup Utility.  Let's say hypothetically my service tag was '1234567', I entered 1253467 instead.  Does anyone know of a way to change your service tag?  Only issue is with auto detect programs like "Alienware AlienAutopsy" where my service tag is not recognized.  Any help would be appreciated, thank you.