Hi Daniel,
You should only use that “reject” option if you review the match and think that our system has matched the incorrect DOI to the reference you provided.
Just so you’re aware, we recently announced that we are working towards sunsetting Metadata Manager by the end of 2021. In order to free up the resources to develop the new Content Registration UIs that will replace Metadata Manager, we need to stop doing other things - that means not adding to, supporting, or bug-fixing Metadata Manager.
If Metadata Manager is working well for you, you can continue using right up until we fully remove it. But, if you encounter any issues, you should consider switching to Web Deposit Form for metadata deposits (and Simple Text Query for reference deposits) until we have a new option built.
We’d love to hear your thoughts on the new tool we’re developing. We encourage you to review our thinking about next steps for Content Registration at Crossref and to provide your thoughts or feedback in this forum post.
Best,
Shayn