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