ERPGenie.COM -> SAP Technical -> ABAP -> Example code -> 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