Hi all,
If you’re using OJS 3.1.0-0 (a.k.a. 3.1.0), I’d suggest upgrading to 3.1.0-1 – the upgrade is not invasive, and there are a few payment-related fixes.
It’s possible to request processing charges after the review process; try accepting the submission after review and you should see processing charge related options.
Regards,
Alec Smecher
Public Knowledge Project Team