With the upcoming additions to Apple’s Identifier for Advertisers (IDFA) in-app data tracking process, Facebook has warned of significant consequences to advertisers, with its Audience Network partners set to see the most significant losses as a result of the new prompts.

The change will observe the extension of new in-app popup alerts that will ask users to opt-in to data tracking within each app.

Last year Facebook warned Audience Network advertisers that the change could result in a 50% reduction in publisher revenue and render the option wholly futile. Hence, Facebook has launched a new mini-site dedicated to providing alternate ad options and devices for its Audience Network partners.

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