I work for a company as a copywriter. My core responsibility is to write engaging marketing content related to the product I'm advertising. Recently, I've written an article on my own initiative. I volunteered to relate the product to a hot trend.
It turned out to be the most successful article that received the highest traffic in the website's history. The company decided to publish it for the conference in a form of a brochure, and when I asked the manager to mention my name (write it somewhere at the end of the article in small letters + the name of our designer, because he did a great job), my request was turned down. The manager said it was team work and mentioned the names of business developers instead, who are not related to the article at all. Now it looks like a 4-page business card.
I feel a little bit offended. I wouldn't have any problems if it was assigned to me by management, as sometimes I act as a shadow writer. I think it would be fair to mention the author's name in this case.
How can I persuade the manager to add my name in the published version on the article? I could add it to my portfolio then.