In the name of user privacy, Apple introduced Intelligent Tracking Prevention (ITP) in 2017 with a view to limit website tracking capabilities in Safari. In 2019, ITP 2.1, 2.2 and 2.3 were introduced that limits client-side tracking to only 7 days or 24 hours, depending on the cookie. This has a severe impact on your digital marketing performance.
Your web analytics, remarketing, personalization, A/B-testing, website cookies, and even cookie-consent cookies are deleted.
Action is required in order to keep accurate and consistent analytics and marketing data.