***** Setup ***** .. _Configure Peppyrus credentials: Configuration Peppyrus credentials ================================== First you must `register with Peppyrus `_, `create your participant ID `_. You can choose to receive the document types :guilabel:`Peppol BIS Billing UBL Invoice V3` and :guilabel:`Peppol BIS Billing UBL Credit Note V3`. Then create an API key and copy it as :guilabel:`API Key` on the `Peppyrus Service `.