| AA | SSCC-18 |
| AI | UCC/EAN-128 Application Identifier (AI) and Data |
| CA | Shipper-Assigned Case Number Number identifying unit shipped |
| CP | Carrier-Assigned Package ID Number |
| DZ | Receiver Assigned Drop Zone |
| GM | SSCC-18 and Application Identifier |
| L | Line Item Only |
| MC | Master Carton Number The identification number of the outermost (external) container in a shipment leaving the supplier's dock |
| PB | Premarked by Buyer |
| R | Originator Assigned Information originated by the initiator of the transaction |
| S | Entire Shipment |
| SI | Self-Identifying Container via Radio Frequency ID Device Inbound containers that do not need manual routing |
| SM | Shipper Assigned |
| SR | Shipper Assigned Roll Number |
| SS | Shipper Assigned Skid Number |
| UC | U.P.C. Shipping Container Code |
| UP | U.P.C. Consumer Package Code (1-5-5-1) |
| W | Pallet Number |
| X | Pallet Configuration Number |
| ZZ | Mutually Defined |