In repair orders with service products (order type RAS in the standard system), when you enter a serviceable material in the repair request item, the system performs material determination to find suitable service products for the serviceable material. If the system finds only one suitable service product, it automatically enters it in the Material field on the order overview screen. If there are several suitable service products, the system lists them so that you can select one.
The substitution category A controls that the service product is entered automatically in the Material field in the repair request item. The serviceable material is also still displayed in the Serviceable material field. However, the service product becomes the main material in the repair request item. This means that functions in the order such as pricing are performed for the service product and not the serviceable material.
Hierarchy 
BBPCRM (Software Component) BBPCRM
CRM-BTX-BF-IF (Application Component) R/3 Interface for Business Transactions
VA (Package) Application development R/3 Sales
Basic Data 
Data Type 
Further Characteristics 
Field Label 
Documentation 
History 
