vendor, or boss, then a verbal apology is still appropriate and should be followed up with a business apology letter to acknowledge that you understand that although there is familiarity this is still a business relationship.
For example, you may write an apology letter to a friend or loved one you’ve insulted. Similarly, you might write anapology letter to a colleaguewhose work you inadvertently sabotaged or took credit for without recognizing them. Even if you didn’t directly cause another’s hurt but contribu...