An offer letter provides a brief overview of the position and company and includes specific job details, such as start date, salary, work schedule and benefits. An appointment letter is a formal document that a hiring manager uses to present a candidate with a job offer and outline the aspects of the role.Complete addresses with zip codes and telephone numbers for all employers are necessary. A recent case from the BC Supreme Court serves as a warning to employers regarding the pitfalls of providing applicants with detailed job offers. It is our pleasure to extend you this offer of salaried employment with Delphi as Chief Financial Officer.