| Type : IdentifierType | 
| Definition | 
| Unique and unambiguous identification of a payment transaction, as assigned by any of the parties on the initiating side, which will be passed on throughout the entire end-to-end chain. (Defined in file Fields.xsd , or a file it imports) | 
| Attributes | |||
| schemeAgencyID | |||
| schemeAgencyName | |||
| schemeDataURI | |||
| schemeID | |||
| schemeName | |||
| schemeURI | |||
| schemeVersionID | |||