A routine message should never include negative information.

It is not always true that a routine message should never include negative information. While routine messages are typically intended to convey information that is not particularly urgent or important, they may also need to convey negative information in a clear and concise manner. For example, a routine message from a supervisor to an employee might include negative feedback or constructive criticism. In such cases, it is important to balance the negative information with positive feedback or suggestions for improvement, and to frame the message in a professional and respectful way.