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| Pattern | Request message name | Result message name | Acknowledgement message name | On event | Purpose |
|---|---|---|---|---|---|
| sync | IO_InvoiceFiscalizeRQ | IO_InvoiceFiscalizeRS | Before invoice is issued (on folio close) | Transmit invoice data & get fiscal code/scodes (signatures) | |
| async | IO_InvoiceFiscalizeNotifRQ | IO_InvoiceFiscalizeNotifRS | IO Message Standard Fields | End of day or time-controlled After successful fiscalization (after folio close) | Transmit invoice data & already assigned fiscal codes |