SD_DOCU_MAINTAIN

Hi Team,

I am creating one sales order via notification ( IW51) and via that same order I am creating CS order that trigger the BDC for transaction VA02 and by selecting the basic line item we are marking repair checkbox and this creates work order in backend automatically . FM " SD_DOCU_MAINTAIN" is used for create process .Does anyone can help me change process for this FM or any other FM.