Even when a DOI has been assigned to an object in OJS it is not automatically known to the registration agency and the corresponding URL at https://dx.doi.org/ will not yet be resolved. You’ll have to register the DOI with one of the DOI registration agencies first. At the time of writing, OJS supports registration with Crossref, mEDRA and DataCite out-of-the-box. You pay a membership fee to register your journal with one of these agencies and sometimes a small fee per DOI registered. Some agencies are more suitable for certain types of journals and their prices vary. It is also possible that an organization you already belong to provides membership in one of these agencies.
Before registering DOIs with Crossref, mEDRA, or DataCite for the first time you’ll have to decide whether you want to use the registration connector in “manual export” or “automatic registration” mode. This depends on your relation with the registration agency and, likely, how hands-on you want to be.
While, in principle, it is possible to mix both modes of operation, you should not usually do so. If, for example, you configure the DOI connectors for automatic registration and then upload a file manually to the registration agency you’ll end up in a situation where the OJS registration database is out of sync with the registration agencies’ database. This can lead to registration errors when trying to update metadata of an object that has been registered manually before. This is especially important when you work with mEDRA as the mEDRA XML format (O4DOI) differs for initial registration and metadata update.
It is not problematic, though, to use the XML export feature for local inspection of XML data that will be transferred to the registration agency via OJS later. As long as the actual registration is done in OJS, the local and remote registration databases will not get out of sync.
For more-detailed, Crossref specific documentation please see the Crossref manual for OJS.
Each plugin has it’s own configuration page. They all look a little different depending on the agency you’ll be working with, but they all feature two things:
Your credential information will be provided for you by the agency you’re working with. If you don’t have any of this information, you can reach out to their support teams.
You may, if you like, keep automatic registration off and deposit each DOI individually yourself. If you’re working on a back-issue run or just getting started with your journal, you might appreciate a little more control. Eventually though, it’s recommended to just let the plugins automatically deposit.
Again, each plugin is a little different. Generally speaking you can manually deposit a DOI with your registration agency by doing the following:
That’s all. Most users will probably be able to do all their DOI registration like this. If you do not intend to update metadata after registration then this is all you’ll ever do.
Sometimes you’ll have an update to metadata related to a publication. Maybe there was a typo in a title or author name, or a substantial change to an abstract. When you replace a galley and/or update your metadata, you should also push that new metadata to your registration agency.
Changes in OJS metadata will not be transferred to the registration agency automatically. You’ll have re-deposit the metadata to the registration agency using the same process as detailed in “deposit” above.
Depending on the registration agency, you may bypass using OJS entirely. For example, Crossref has a web deposit form for new publications. External management of DOIs will always be more work. Typically, it involves hand-populating spreadsheets or web forms. But, if you are interested in really spending some personal time with your DOIs, contact your registration agency to ask about your options.