The LinkedIn account used to connect must have Admin level access.
Be prepared to provide your Company ID and Ads Account ID for us to pull data from the API.
Please note: LinkedIn's API requires users to reconnect about once a year for security reasons. This means that you'll just need to go into the LinkedIn credential within Channelmix Control Center, click the edit button next to the credential, and then select "Reconnect".
For more details around reconnecting data sources within ChannelMix Control Center, please read this article.