Manual E-bill 499.41

4.9 Booking incoming payments and managing accounts receivable
Because the PostFinance e-bill solution is based on the ISR service, booking
and advice of incoming payments are handled via this service (see section
10). The corresponding files contain incoming payments for both electronic
and paper bills. If electronic bills are not specially marked with a special
ISR customer number or other specific reference, differentiation will not be
possible.
The entire accounts receivable management process including reminders is
performed according to processes defined by the biller, which are the same
as those for printed bills.
The biller decides whether payment reminders for bills originally issued in
electronic form are to be issued electronically or on paper.
4.10 Archiving invoices
In accordance with legal requirements (in particular the MWSTG, GeBüV,
etc.) billers are responsible for their own bill storage (see section 1.4). In the
case of digitally signed bills, the biller authorizes Swiss Post and its affiliated
network partners to sign bills electronically in the form of a delegation
declaration. Because billers and bill recipients must have identical bills in
their archives, the signed data are provided to the biller. Billers acknowledge
that invoice details will not be archived by PostFinance.
The biller has the following options for obtaining the signed data:
• Download the data
• Take out a subscription to the archive-disk
The archive-disk for a biller contains the following:
• Transmitted data in the original delivery format (bill data and PDF)
• Digitally signed bills in delivery format incl. signature check report
Manual E-bill Version October 2010 22/64