The Business Partner Portal is a cloud platform for the digitization and standardization of supplier communication. It provides a central platform for the exchange of documents and data in the P2P process between customers and suppliers and is hosted on the SAP Business Technology Platform. The E-Invoice solution automatically collects incoming e-invoices from the e-mail inbox or an e-invoice portal. It supports for example XRechnung, ZUGFeRD and PEPPOL.