In addition to language and location, how many layers of targeting attributes does LinkedIn recommend you include when setting up your campaign?

LinkedIn recommends using no more than 2-3 layers of targeting attributes in addition to language and location. This approach helps keep your audience focused and relevant without making it too narrow. Over-targeting with too many layers (like 7-8 or even 4-5) can significantly reduce your audience size, making it difficult to deliver ads effectively and achieve sufficient reach. While there's no strict technical limit, LinkedIn's recommendation is based on best practices for campaign performance and audience engagement.