A partially completed charge sales systems flowchart is shown in Figure 2.37. The flowchart depicts the charge sales activities of the Bottom Manufacturing Corporation. A customer’s purchase order is received and a six- part sales order is prepared from it. The six copies are initially distributed as follows:

Copy 1: Billing copy— to billing department

Copy 2: Shipping copy— to shipping department

Copy 3: Credit copy— to credit department

Copy 4: Stock request copy— to credit department

Copy 5: Customer copy— to customer

Copy 6: Sales order copy— file in sales order department

When each copy of the sales order reaches the applicable department or destination, it calls for specific internal control procedures and related documents. Some of the procedures and related documents are indicated on the flowchart. Other procedures and documents are labeled letters a to r. Required List the procedures or the internal documents that are labeled letters c to r in the flowchart of Bottom Manufacturing Corporation’s charge sales system. Organize your answer as follows (an explanation of the letters a and b, which appears in the flowchart, is given):

Flow Chart Symbol                         Procedures or 

            Letter                                     internal Documents  

a ….................................................    Prepare six- part sales order

b ….................................................    File by order number