Check who should receive the message
Confirm that you have the right person, the right role, and permission to disclose the information involved. For a message about how to tell your manager about a serious work mistake, use this factual base: lead with the confirmed event, what it changes, who already knows, and any practical next step.
Separate information from interpretation
Label confirmed facts, open questions, and the specific decision that belongs to the recipient. Say what support or decision is needed now and make clear when no response is required. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Use formal help when stakes rise
Do not hide the central fact behind a long preface, speculate, or offer reassurance you cannot support. For death, abuse, medical emergencies, legal danger, or immediate safety risk, use qualified and urgent support first. Medical, legal, financial, employment, and safety decisions may require a qualified professional rather than personal persuasion.