What is IDFA and is Apple IDFA important?

What is IDFA? Justin Kan Explains Apple Identifier for Advertisers what is idfa The IDFA is a temporary device identifier used by most Apple devices It provides user information that enable advertisers to serve relevant ads what is the theme for the lottery by shirley jackson IDFA is turned off by default in iOS 14, but you can turn it on 99% of iPhone users choose not to share IDFA, which is a major obstacle for digital media

what is bupb It stands for Identifier for Advertisers and is a unique, random, and resettable numeric identifier assigned by Apple to each iOS device