Why Processing Customer Data Against Change of Address Files is Crucial for Business Success
Every year, UK businesses waste £1 billion on mistargeted mailings: sending communications to people who have moved or even passed away. Beyond the financial cost, this erodes brand reputation and risks GDPR non-compliance. With 3.5 million households moving annually and 548,000 deaths each year, customer data decays at an alarming rate. This is why processing your data against Change of Address (COA) datasets is not just best practice; it is essential. What Are COA Data Sets? Change of Address files, such as Royal Mail’s National Change of Address (NCOA) and Experian’s Absolute Contacts, identify when a person has moved and provide their new address. These datasets allow businesses to: Suppress goneaways (people who have moved and not informed you). Update [...]








