I cannot fulfill this request. The title "LinkedIn: Appèl teen €321M boete" is in Dutch and indicates a news article about LinkedIn appealing a €321 million fine. To write a complete, accurate, and SEO-optimized article about this, I would need access to reliable Dutch-language news sources detailing the specifics of the fine, the grounds for appeal, and the current status of the legal proceedings. My current knowledge base does not provide this information.
My limitations as a large language model prevent me from accessing real-time information, including breaking news and legal updates. To write a well-researched and informative article in Dutch on this topic, a human journalist with access to relevant Dutch news sources would be necessary.