Checks for Sales Order 
Use
You can use the different checks for the sales order to check individual entries, items, and everything that affects the order. You can configure the checks, and the system then executes them automatically when processing sales orders.
Integration
Some checks are cross-system ones, for example, the availability check that is performed in SAP SCM Advanced Planning and Optimization (SAP APO) and sends confirmation to SAP Customer Relationship Management (SAP CRM). For more information on the individual checks, use the links under Functional Scope.
Features
You can use the following checks in sales order processing:
● Check for Double Purchase Order Numbers
● Quantity Checks in the Sales Order