| I_BUFREF | C | C | 0 | ' ' | X |  | 
                                    
                    | I_DOC_NUMBER | VBELN | C | 10 |  | X | Sales and distribution document number | 
                                    
                    | I_DOC_TYPE | WB2_DOC_TYPE | C | 2 |  | X | Document Type | 
                                    
                    | I_ITEM | POSNR | N | 6 |  | X | Item number of the SD document | 
                                    
                    | I_LIPS | WB2_LIPS_STAB | h | 1888 |  | X | Delivery item | 
                                    
                    | I_NAME | TFDIR-FUNCNAME | C | 30 |  | X | Function module name | 
                                    
                    | I_OPEN_SCENARIO | WB2_OPEN_SCENARIO | C | 2 |  | X | Application scenario to calculate Open Order/Delivery | 
                                    
                    | I_READ_DB | C | C | 0 | ' ' | X |  | 
                                    
                    | I_STEP | WB2_STEP | C | 4 |  | X | Step of the business process | 
                                    
                    | I_TEW | C | C | 0 | ' ' | X |  | 
                                    
                    | I_TEW_TYPE | WB2_TEW_TYPE | C | 4 |  | X | Trading Execution Workbench Type | 
                                    
                    | I_TKONN | TKONN | C | 10 |  | X | Trading contract: Trading contract number | 
                                    
                    | I_TPOSN | TPOSN | N | 6 |  | X | Trading contract: Item number |