Apr 7 (Reuters) – Apple Inc said on Wednesday that in the coming weeks it will begin enforcing a new privacy notification rule that digital advertising firms such as Facebook Inc have warned will affect their sales. Apple said the notices will be mandatory when its iOS 14.5 operating system becomes available in the coming weeks, although it did not give a precise date.

One-time notices will require the app developer to ask the user for permission before it can track activities “on other companies’ apps and websites.” Experts in the digital advertising industry have said that the warning could cause many users to reject the permission.

The firm announced the move in June, but said in September it would delay the change to give digital advertisers time to adjust. Some developers are already showing the notice on a voluntary basis.

Apple has said it is providing developers with alternative advertising tools ahead of the change. One provides a way for advertisers running app install ads to see how many people installed an app after the ad campaign without disclosing information about individual users.

Another tool, called private click management, gives advertisers a way to measure when a user clicks on an ad within an app and is taken to a web page, but without revealing data about the individual user.

Although the tools are intended for use by software developers, Apple added information about them to one of its consumer privacy guides on Wednesday.

Facebook said in December that it planned to show the pop-up notification because it didn’t want Apple’s iPhone users to lose access to its apps.

(Reporting by Stephen Nellis in San Francisco; edited in Spanish by Carlos Serrano)

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