| TAXTYPE | smallint | No | 0=Regular,1=Freight,2=Misc. | IN |
| ORD | int | No | Line Item Sequence -Ignored for Freight/Misc. | IN |
| VENDORID | char(15) | Yes | ID of the Vendor you are purchasing from, used to default MC | IN |
| RequesterTrx | smallint | No | Requester Transaction - 0=false,1=true - if true then populates Requester shadow table | IN |
| USRDEFND1 | char(50) | No | User Defined field - developer use only | IN |
| USRDEFND2 | char(50) | No | User Defined field - developer use only | IN |
| USRDEFND3 | char(50) | No | User Defined field - developer use only | IN |
| USRDEFND4 | varchar(8000) | No | User Defined field - developer use only | IN |
| USRDEFND5 | varchar(8000) | No | User Defined field - developer use only | IN |
| oErrString | varchar(255) | No | List of errors encountered | INOUT |