SAP Standard system allows only 8 levels of release codes. Release procedure is of two types Release Procedure without classification This procedure is applicable only for Purchase Requisitions. Here PR is released Item by Item only. Release Procedure with classification, This procedure is applicable to PR, PO,Contract and scheduling agreements. Item by Item and Header level releases can be configured. For PR – both item by item and Header level release can be configured. For external purchasing documents – Release is possible only at Header level. This course is structured in two forms: 1. Customizing 2. Execution of process