I asked for a comprehensive list of error and informational messages produced by Robocopy. I described my problem (a huge log file), my efforts to resolve it (numerous web searches and reading articles that looked relevant), and my requested solution (a comprehensive list).
The log file did not indicate a Robocopy version number, but the tag indicated Windows 10.
I've added some minor revisions to my question, but they're more for clarity.
Was the question closed by mistake?
Closure explanation does not appear to apply in any way:
Questions seeking product, service, or learning material recommendations are off-topic because they become outdated quickly and attract opinion-based answers. Instead, describe your situation and the specific problem you're trying to solve. Share your research. Here are a few suggestions on how to properly ask this type of question.