Customers _ Letters and forms should be available for all aspects of managing customers. Welcome letters, thank_you letters, letters updating clients on any changes to your service or letters to thank customers for referring business to you all contribute to good customer relations.
The social security number will be part of the template. It will provide the company everything it has to know about the employee. If he has an outstanding warrant of arrest from the police, if he is an outstanding debt, what responsibility he has, what violations he did, etc.