Dear Friend,
1. When a person is shortlisted for selection for a certain position in the Company, he/she is given an Offer Letter or a Letter of Intent.
2. After the person joins the Co. and all pre-joining formalities are completed, he/she is given an Appointment Letter.
3. During the probationary period the employee's performance is assessed and subject to his satisfactory performace during such period, he/she is given a Confirmation Letter.
If the performance is not satisfactory, the probationary period may be extended as per rules of the Co. In such cases Probation Extension Letter is issued.
If the employee's performance is poor/unacceptable, well he/she is given a Termination Letter.
I hope the process is clear to you. In case you wish to seek further clarifications, please feel free to contact me.
Vasant Nair
09717726667