Thanks for bringing your question to the community! As it is now, Social Share does not currently support the ability to post your campaigns to LinkedIn company pages. We do have an open Feature Request for this ability, and I've tracked your interest and set up an automatic notification to go out if our engineers decide to implement this functionality.
In the meantime, the best way to post your campaigns to your LinkedIn company profile is with the Share URL. You can get the Share URL by clicking the "Link" icon next to the name of a sent campaign. You can then post that URL normally to any social media site you like.
Nate M. Community Support If you find my post helpful, and it answers your question, please mark it as an "Accepted Solution" by clicking the Accept as Solution button in the bottom right hand corner of this post. Increase your profitability by integrating your email marketing and social media. Download this guide and learn how you can achieve great results with email marketing and social media combined!
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