| I_ALV | C | C | 0 | ' ' | X |  | 
                                    
                    | I_BUFREF | C | C | 0 | ' ' | X |  | 
                                    
                    | I_BUSINESS_STEP | WB2_STEP | C | 4 |  |  | Step of the business process | 
                                    
                    | I_DOC_NUMBER | VBELN | C | 10 |  |  | Sales and distribution document number | 
                                    
                    | I_DOC_TYPE | WB2_DOC_TYPE | C | 2 |  |  | Document Type | 
                                    
                    | I_EKPO | WB2_EKPO_STAB | h | 1672 |  | X | Purchasing Document Item | 
                                    
                    | I_GJAHR | GJAHR | N | 4 |  | X | Fiscal year | 
                                    
                    | I_ITEM | POSNR | N | 6 |  |  | Item number of the SD document | 
                                    
                    | I_LIPS | WB2_LIPS_STAB | h | 1888 |  | X | Delivery Items | 
                                    
                    | I_PRE_STEP | WB2_PRE_STEP | C | 4 |  |  | Previous Step of Business Process | 
                                    
                    | I_READ_DB | C | C | 0 | ' ' | X |  | 
                                    
                    | I_SUB_ITEM | POSNR | N | 6 |  | X | Item number of the SD document | 
                                    
                    | I_TEW_MODE | WB2_MODE | C | 4 |  |  | Mode of the steps of a business process | 
                                    
                    | I_TEW_TYPE | WB2_TEW_TYPE | C | 4 |  |  | Trading Execution Workbench Type |