原文：Small Fire · CS12 ALV 增强 · ABAP 子专栏 · Small Fire 技术笔记
事物码 CS12：的执行程序查看
可以看到，最终执行的程序是RCS12001，因此可以在该程序中查找增强。
执行的程序：
- RCS11001：Display BOM Level by Level
- RCS12001：Display Multilevel BOM
- RCS13001：Summarized BOM - Multilevel
User Exits:
- PCSD0001：Applications development R/3 BOMS
- PCSD0002： BOMs: Customer fields in item
- PCSD0003： BOMs: Customer fields in header
- PCSD0004： BOM comparison
- PCSD0005： BOMs: component check for material items
- PCSD0006： Mass changes user exit
- PCSD0007： Check changes in STKO
- PCSD0008： WBS BOM: Customer-specific explosion for creating
- PCSD0009： Order/WBS BOM, determine URL page
- PCSD0010： Order/WBS BOM, determine explosion date
- PCSD0011： Knowledge-based order BOM, parallel update
- PCSD0012： Customer - Mat. number/mat. number during material exchange
- PCSD0013： Customer-specific processing of an explosion for BOM browser
- PCSD0014： Knowledge-Based Order BOM: Status