Release at Order Header Level 
Use
Release at order header level, results in the order and all its operations being released. The order and the operations receive the status REL (released). You can release a production order in creation and change mode.
Features
Release at order header level can be carried out as follows:
Manual Release of Order
Automatic Release
Automatic Actions when Releasing a Production Order
When you release a production order, the following actions can be executed automatically:
- In the production scheduling profile, you can set the system to print shop floor papers or to schedule the order. You maintain the production scheduling profile in Customizing for Shop Floor Control, by choosing Master Data ®
Define Production Scheduling Profile.In the checking control for the availability check, you can specify that a check is made for availability of material, capacity and production resources/tools. You maintain the checking control in Customizing for Shop Floor Control, by choosing Operations ® Availability Check ® Define Checking Control.