It’s now possible to import non-aggregatable metrics through the LinkedIn connector! Following metrics are available on a Campaign level with 1 Day time window:
• Reach• Frequency
• Impressions
Above metrics are compatible with the following dimensions:
• Campaign• Campaign ID
• Campaign Format
• Campaign Objective
In order to get access to the non-aggregatable metrics you need to connect a new LinkedIn data source: 
To get more information about non-aggregatable metrics in Funnel see What are non-aggregatable metrics? If you have any feedback or questions, please reach out to support@funnel.io. We're happy to hear from you!