When you do a renewal in the staff interface, and the previous renewal was in the OPAC, the actions logs will say it was done in the OPAC. To recreate: 1. Enable RenewalLog 2. Check out an item to patron A 3. Check out another item to patron B 4. Log in the the OPAC as patron A and renew the checkout 5. In the staff interface, renew the checkout for patron B 6. Go to Tools > Log Viewer 7. Check the Circulation module and click OK --> Both renewals have the interface "OPAC" It seems to be a cookie thing maybe? If I do the OPAC renewal in a private browser window, it's ok. I realize this is unlikely to happen in real life, I was trying to create log entries for the manual. But I don't know enough to know if this is a symptom of a bigger problem or not, so I figured I'd report it...