The proper completion of the mission is automatically checked the day after the publication. If the publication does not comply with the advertiser's request, you will receive an error message entitled "Problem with one of your missions".
Find out about the problem: link, anchor, or article's URL.
From the source code of your article, check that the link/anchor corresponds to what is displayed in the mission brief.
Contact us via chat with the correct link/anchor as it is in the article source code.