The field or missing metadata report gives details on metadata completeness and can be accessed by selecting the 
icon next to each member name in the depositor report (access the depositor reports by type at the links below). The fields checked are volume, issue, page, author, article title, and Similarity Check URL.
| Depositor reports by record type |
|---|
| Access journals depositor report |
| Access books depositor report |
| Access conference proceedings depositor report |
To see your field or missing metadata report, use this URL but replace 10.5555 with your prefix:
https://apps.crossref.org/myCrossref?report=missingmetadata&datatype=j&prefix=10.5555
Select a title to retrieve a list of DOIs for the title, and flagged fields for each DOI. For example, the DOIs in this report lack page and author information:
Although the deposit section of the schema specifies that some bibliographic metadata is optional for content registration purposes, we strongly encourage members to register comprehensive metadata for each item registered.