Slovenská sporiteľňa as well as other banks are authorized to provide conversion of all transfer files for the transition period's duration, which ends on 1. 2. 2016. From this date on the payer must send payments in the ISO 20022 XML format pain.001.01.03. message. The payment file description here. Ask your accounting system provider if you are ready to generate payment files in this structure. In case you need to test the payment file pain.001.01.03 contact the client centre.