Users of the DATEV SME packages "DATEV Mittelstand Faktura mit Rechnungswesen", "DATEV Mittelstand Faktura mit Rechnungswesen compact (ITU)" and "DATEV Mittelstand Faktura mit Rechnungswesen compact" require the current version of the software. 

This is either the "Service Release for DVD 14.1A/ Payment Transactions Version 8.2C or theService Release for DVD 14.0/ Payment Transactions Version 8.12. 

If you only use the cloud solution DATEV Unternehmen Online, you can start without any further update. 

You can find more information about the DATEV connection in our blog article and in our step-by-step instructions.