Home Twitter Performance Fundamentals Badge When an advertiser has different measurement sources, each with slightly different definitions for attributing actions to advertising, the result can be: When an advertiser has different measurement sources, each with slightly different definitions for attributing actions to advertising, the result can be: personCertification Answers share Q. When an advertiser has different measurement sources, each with slightly different definitions for attributing actions to advertising, the result can be: Measurement discrepancies Measurement adjacencies Higher reach Lower reach Facebook Twitter Whatsapp Newer Older