1 Scope
This part of ISO 20022 was prepared to complement ISO 20022‑1 . The reverse engineering guidelines explain how to extract relevant information from
existing IndustryMessageSets in order to prepare the submission to the ISO 20022 Registration Authority of equivalent, ISO 20022 compliant BusinessTransactions and MessageSets.
The ISO 20022 Repository will contain all ISO 20022 compliant BusinessTransactions and MessageSets, as outlined in ISO 20022‑1 . The approach to be followed for adding ISO 20022 compliant BusinessTransactions and MessageSets to the Repository can be classified
according to the following scenarios.
Case 1: