In light of the changing data privacy landscape and significant changes to how apps can collect data from regulatory shifts and updates, social platforms are working to erect new processes in data collection so marketers would not miss their target market by using previously available insights.

LinkedIn aims to address this with the introduction of several new processes, such as a new "Group Identity" targeting option that will rely on its own first-party data- entered profile data-to segment audiences into more segments.

According to LinkedIn :

"With Group Identity for B2B, you are using your first-party data to group members together around shared professional identity attributes such as seniority and industry. This enables you to more effectively target your desired audiences through channels like the LinkedIn Audience Network, without requiring individual-level tracking across sites."

It's essentially the process of allowing you to use LinkedIn categorization on third-party sites, part of LinkedIn's Audience network, to reach users with your promotions. You have always been able to use the same type of targeting on LinkedIn itself, but this new process will give you more options for reaching audience segments based on more qualifiers without you having to specify your audiences through your own targeting selections.

The actual benefits of this will vary, but it could be a great way to reach, say, 'IT managers' across the web with promotions based on their LinkedIn profile information.

Besides this, the platform is also testing new machine learning models that will estimate and report on campaign conversations across channels "with a high degree of accuracy by using data from all parts of our platform." The update from Apple regarding its ATT has made conversion tracking much more difficult, and LinkedIn is hoping it can create more accurate conversion modeling processes in order to continue providing this type of tracking insight.

LinkedIn’s also working on the attribution of offline or offsite conversion events to LinkedIn campaigns. 

The accuracy of these will likely be variable, but the hope is that through advanced techniques, social platforms will still be able to provide valuable and actionable insight for campaigns, in order to help marketers maximize their results.
LinkedIn's still evolving these measures but does recommend that marketers enable first-party settings on their LinkedIn Insight Tag on their websites and apps to continue to support campaign measurement.