Prerequisites 
The following prerequisites must be met if you want to use the interface:
Valid bill of material
Valid routing
Valid settlement profile (Customizing:
Production Orders
Master Data
Orders)
The production version, if used, must be valid for the time and lot size specified
Material availability: the material must be available in sufficient quantity or the indicator for the material availability check cannot be set for the status created or released (Customizing
Production Orders
Operations
Availability Check
Check Control).
If the production order is to be costed, activity types and activity prices must be maintained in the work center or cost center