About Barzahlen

General information about Barzahlen

This manual describes configuring and using the  interface for Barzahlen:

Barzahlen is aimed at customers in Germany who do not want to enter sensitive data online, and those who do not use credit cards or online banking. An alternative to cash on delivery, Barzahlen is quicker and less expensive. Customers pay the amount to an associated retailer, on the basis of a payment form; the retailer transmits a payment confirmation in real time to the online shop so that the goods can be dispatched quickly.

Barzahlen is a payment provider for cash transactions. Customers use cash to pay for online purchases, travel bookings or diverse invoices. It is also possible to pay by cash to one’s own giro account.

The customer receives a barcode via email, SMS or Post to process the payment. This barcode is then scanned at the checkout of an individual partner branch and the customer pays with cash or another permitted payment method. The supplier is notified about payment in real time by the checkout system once the customer has paid. The payment service is carried out by Greensill Bank AG from Bremen.

Currently cash payments are made throughout Germany in over 10,000 branches of the REWE markets, dm-drogerie markets, PENNY markets, real,- supermarkets, Telekom Shops, mobilcom-debitel branches and with Budni chemists and in branches of the Dr. Eckert group.

Cash payments offer users who prefer cash, the option to buy, gamble or to book travel online without entering sensitive financial data. This cash option, means it is the only payment system available to every German without restriction. 68% of Germans over 18 years have no credit card (Deutsche Bundesbank 2015) and 51% do not use online banking (Bundesverband deutscher Banken 2014).

Further information can be found on the webpage of Barzahlen (https://www.barzahlen.de/de/).

Process flow chart

Barzahlen process flow

Configuration for Barzahlen

Merchants need to initially setup an account with Barzahlen on their webpage: https://controlcenter.barzahlen.de/#/account/signin

You start configuration once you have logged on.

In the cash payment Control Center you need to enter the following URLs under Settings / Divisions (https://controlcenter.barzahlen.de/#/settings/divisions).

Notification URL: BarzahlenComplete.aspx

Sandbox notification URL: BarzahlenComplete.aspx

You must send the division-ID together with the payment key to the  Support at , in order to activate this payment method within your MID on .

interface

Call of interface for Barzahlen

To carry out a Barzahlen payment via a Server-to-Server connection, please use the following URL:

Parameters for payments with Barzahlen

Response parameters for payments with Barzahlen

The following table gives the results parameters which the  transfers to your URLNotify:

Response parameters for URLNotify with Barzahlen

The merchant has to implement the following code on his page in order to display the Barzahlen checkout page.

<!-- Barzahlen Checkout -->
<script src=https://cdn.barzahlen.de/js/v2/checkout.js
        class="bz-checkout"
        data-token="CHECKOUT_TOKEN">
</script>
<!-- End Barzahlen Checkout -->

The value of the Checkout_Token is transferred by  in the TokenExt parameter.

The src value must contain the following values for test and productive transactions:

Test: https://cdn.barzahlen.de/js/v2/checkout-sandbox.js\
Productive: https://cdn.barzahlen.de/js/v2/checkout.js

Updating a payment

To update a Barzahlen payment via a Server-to-Server connection, please use the following URL:

Parameters for updating a payment with Barzahlen

Response parameters for updating of Barzahlen

Credit with reference

Credits (refunds) are possible via a Server-to-Server connection. To carry out a credit with a reference transaction, please use the following URL:

Parameters for credits of Barzahlen payments

Result parameters for credits of Barzahlen payments

Reversal

In order to cancel a Barzahlen payment via a server-to-server communication, please go to the following URL:

Parameters for reversals of Barzahlen payments

Result parameters for reversals of Barzahlen payments

Batch processing via the interface

This section describes the parameters which must be transferred within the data set (Record) for executing reversals or credits with Barzahlen and which information can be found within the response file about the payment status.

For Batch calls there must be considered batch versions, from which optional parameters depend. All version designations starting with „2.“ pertain calls for a group of enterprises. That means within a batch file for a particular MerchantID can be transferred transactions for other merchants with a separate Sub-MID.

Following table gives an overview of all batch versions that are possible for a specific action and their specialities:

Description of the possible batch versions

The structure for a Barzahlen payment within a Batch file to be submitted is the following:

HEAD,<MerchantID>,<Date>,<Version>
Barzahlen,Credit,<Amount>,<Currency>,<TransID>,(<RefNr>,)<PayID>
Barzahlen,Reverse,<Amount>,<Currency>,<TransID>,(<RefNr>,)<PayID>
FOOT,<CountRecords>,<SumAmount>

Example for Master MID function:

HEAD,[Master]MerchantID,Date,2.x
Type,Action,[Slave]MID,Amount,Currency,TransID,Data (depends on Action)
FOOT,CountRecords,SumAmount

Description of fields within the record for Batch files

The record area within the response file for Batch transactions looks the following way:

HEAD,<MerchantID>,<Date>,<Version>
Barzahlen,Credit,<Amount>,<Currency>,<TransID>,(<RefNr>,)<PayID>,<Status>,<Code>
Barzahlen,Reverse,<Amount>,<Currency>,<TransID>,(<RefNr>,)<PayID>,<Status>,<Code>
FOOT,<CountRecords>,<SumAmount>

Description of result parameters within the record for Batch files