When you reach the final production step, the next part of the submission process is to publish the submission in the catalog, add publication formats, and upload proof files. You can publish in the catalog via the "Catalog Entry" link at the top of the page. Clicking that will open a window that contains all of your metadata, which you can review, and then a final checkbox at the bottom of the form. Checking that box and submitting the form will publish your monograph in the catalog. Once that is done, you can add publication formats for your book.