Hi Michael.
Thanks for your question! We're aware that the scanning action part can be a little confusing, and we're working on making it clearer.
Currently, if a scan runs without specific credentials, the chance of encountering errors is low. However, we know it's not ideal that there isn't a warning when this happens.
Rest assured, we do track which credentials were used and which ones were successful, and we're working on making that information more visible in LS Sites. We appreciate your feedback as it helps us improve the user experience.