| Advice |
A transaction indicating that a transaction must either be finalised or reversed. |
| Confirmation |
Advice message indicating that a transaction has been finalised. |
| Downstream |
Message flow in the direction toward POS. |
| Message |
A sequence of data sent from one party to another. |
| Partner |
Entity who provides an application capable of scanning QR codes and who accepts responsibility for processing transactions associated with the QR code. |
| POS |
Point-of-sale. The platform at which a retail transaction is conducted between customer and merchant. |
| QR Code |
A two-dimensional graphical representation of data which can be captured and parsed using mobile applications which interface with an optical device. |
| Reversal |
Advice message indicating that a transaction must be reversed. |
| Transaction |
An exchange of data between two parties i.e. two messages exchanged between two parties. |
| Upstream |
Transaction flow in the direction away from POS. |