LinkedIn will discontinue lookalike audiences on February 29. Before March, advertisers must modify their audience targeting strategy, as they will no longer be able to create new lookalike audiences or edit existing ones. For existing ad campaigns using lookalike audiences on LinkedIn, you will need to shift to predictive audiences or activate audience expansion to maintaining a dynamic targeting strategy. LinkedIn is providing a 30-day grace period during which unused lookalike audiences can still be accessed before being archived. It’s also important to note that LinkedIn’s API for creating lookalike audiences through third-party marketing platforms, such as HubSpot, will no longer be available.