Facebook today began alerting corporate users on the platform that the privacy features in IOS 14 would “significantly affect” their marketing and advertising efforts, following newspaper objections to Apple’s advertising privacy plan. Now, Facebook’s Facebook business suite and Facebook Ad Manager push messages on the IOS side to alert more advertisers. < p > < p > in the banners of both apps, it says: “Apple has announced product and policy changes that could have a significant impact on the way you run advertising, measure performance, and attract customers.”. Earlier this year, Facebook said advertising revenue could fall by 50% to 60% as a result of the new privacy policy, and then both sides fell into a mutual engagement model. < / P > < p > originally planned to take effect with the launch of IOS 14, but Apple has delayed the launch of anti tracking until 2021 to give developers more time to prepare. This privacy feature affects the advertiser’s identifier (IDFA), which allows advertisers to collect data across applications and platforms. IDFA users will need to explicitly choose to accept IDFA tracking when changes first appear. Spontaneous combustion at a Guangzhou Motor vehicle intersection and other traffic lights in Shenzhen