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