These Implementation Guidelines ( ) set out the Single Euro Payments Area ( ) rules for implementing the customer-to-bank (C2B) ISO 20022 XML message standards based on the versions 1.0, 1.1 and 1.2 of the 2019 Instant Credit Transfer ( ) rulebook.
An errata document was published on 27 May 2019 which contains a minor update to these .
XML Schema Definitions (XSDs) related to the aforementioned are also made available (note: XSD files can be opened via a text editor (e.g. Microsoft Notepad) or XML Schema editor.).
XSDs are not developed for ‘production’ purposes, they are to instantiate the business rules and restrictions contained in the implementation guidelines in a formal interchange format, sometimes referred to as Technical Validation Subsets (TVSs). Production instantiations should refer to the default ISO 20022 namespaces.