Letters obtained by Finextra show an exchange by the ECB and Swift regarding the latter’s responsibi...: Letters obtained by Finextra show an exchange by the ECB and Swift regarding the latter’s responsibility to mitigate risks caused by its decision to delay migration to ISO 20022. During its March 2020 meeting the Swift Board and Executive endorsed a decision to shift their ISO 20022 migration date for cross-border payments from November 2021 to end 2022.