This is an Internal Audit question, please help to answer in detail.

Discussion Questions 1 . You are studying in the campus library for your next internal audit exam with Mark and Ann , two of your classmates Mark says : " I really don't understand this vouching and tracing stuff For example , what difference does it make whether I start with sales InVOI voices and match them with shipping documents or start with shipping documents and match them with sales invoices ? Ann replies : " I don't get it either . I hope there's nothing on the exam about it You respond : " I really ( lon't want to take that chance . Professor Smart seems to enjoy asking us hard questions . I think we better figure it out and be prepared . I'd rather be safe than sorry Consider the following two audit objectives : ( 1 ) determine whether sales billed to cust omers have been shipped and ( 2 ) determine whether shipments to customers have been billed Answer the following questions 2 . What is the difference between the two audit objectives ? b . What audit procedure would you perform to achieve each audit objective ? Be specific C . Why is it important that for each audit objective , you select the proper document as the starting point for your audit test and match that document with the other document