Accounts Receivable (AR) Question:

A Customer Master Record is a permanent record that contains key information about a business partner or a material. This information must be entered into the system before any transactions can take place involving the business partner [customer] or a material. Entering all the information about a customer or a material into the system b efore making transactions insures that subsequent transactions or inquiries will have consistent data and reports and analyses can be done in an orderly way. Master Records can be edited or changed when necessary. Changing master records is frequently called "Maintaining" in SAP