Https://www.iso20022.org/sites/default/files/webform/crms_update_of_existing_api_reso/_sid_/s.pdfhttps://www.iso20022.org/sites/default/files/webform/crms_update_of_existing_api_reso/_sid_/s.pdfhttps://www.iso20022.org/sites/default/files/webform/crms_update_of_existing_api_reso/_sid_/s.pdfhttps://www.iso20022.org/sites/default/files/webform/crms_update_of_existing_api_reso/_sid_/s.pd... https://www.iso20022.org/sites/default/files/webform/crms_update_of_existing_api_reso/_sid_/s.pdf