Why should Oracle Purchasing Categories be mapped to Catalog Categories in iProc?

• Category mapping enables you to map Categories defined in Oracle Applications to Catalog Categories defined in iProc. 
• Catalog Categories are created using the Schema Editor page or uploaded through XML or spreadsheet catalog files. 
• These Catalog Categories do not necessarily match the categories created in Oracle Applications, however, Oracle Purchasing will not process orders against Catalog Categories unless they are mapped to Categories defined in Oracle Applications. 
• If you or a supplier uploads catalog data that contains categories that are not defined in Oracle Applications, they must be mapped before they can be used on a purchase order or agreement.