eBay Inc. today announced that it has acquired BillSAFE, a provider of purchase-on-invoice technology in Germany.

Terms of the deal were not disclosed.

By combining BillSAFE with PayPal, which serves more than 15 million accounts in Germany, PayPal believes the addition of BILLSAFE will provide a comprehensive payment service for merchants and consumers. BillSAFE works with merchants of all sizes in Germany, giving them a secure way to let shoppers purchase using an invoice. Customers simply select the item they want to buy, and then they receive an invoice for payment after the item is received.

Purchase on invoice is the most popular form of payment in Germany, Austria, Switzerland and the Netherlands.

eBay Inc. does not expect the acquisition of BillSAFE to have a material impact on its financial guidance as issued in conjunction with its third quarter earnings.