SD--Adding Custom Fields to VBAP and VBAK / Additional data B screen

 

• choose the table VBAP or VBAK ( depending on header or item)
  
• click on button "append Structures" .
  
• it will propose you the standard name for the table ZAVBAP or ZAVBAK
  
• add fields with prefix ZZ
  
• trans SE51 maintain user exit screens in program SAPMV45A
  
• 8459 user exit item level
  
• 8309 user exit header level
  
• you can then design your own layout. and define your flow logic
  
• PBO modules MV45AOZZ
  
• PAI modules MV45AIZZ
  
• Data definitions MV45ATZZ
  
• Subroutines in MV45AFZZ