When the error message contains a clear message and a URL with step-by-step instructions, and the person in question just pastes the full error message including the URL, and asks "what do I do?"
When a problem can be solved by responding with "please follow the instructions in the error message you sent me".
When someone makes an internal group post asking "how do I do X?" and the pinned post that was right below the submit button contains a summary and link to detailed step-by-step instructions titled "how to X".