SAP Note 325546 - CO line item reports : Creating a user-defined field
Base on sap note 325546, I will give example for add new fields Order type to report KOB1. Go to tcode SM34 and maintain view table V_TKALV add new fields ZZAUART in structure KAEP_COAC, field group "K". Go to sap enhancement SMOD and entry Enhancement project COOMEP01 and click button test run. double click include table CI_RKPOS and add new component ZZAUART component type AUFART. Then activated structure CI_RKPOS. Double click FM EXIT_SAPLKAEP_001. In area Function module double click ZXKAEPU01 to create include file. Add this code CHECK i_rep_object = 'OR'. SELECT SINGLE auart INTO cs_record-zzauart FROM aufk WHERE aufnr = cs_record-aufnr. Activated ZXKAEPU01 and then actived COOMEP01. Now you can see in KOB1 fields order type in line item data. (Oka)