Peppol: Pan-European Public Procurement Online

Peppol Network: 4-corner model

  1.    Sender
  2.    Sender's Access Point
  3.    Receiver's Access Point
  4.    Receiver

Access Point: A certified service that sends/receives Peppol documents, handles security, certificate management, and routes to/from other Access Points. ECGrid is an Access Point.

Peppol Authority: The governing bodies

   OpenPeppol -International governing body

   Peppol Authorities -Country level governing bodies

SMP: Service Metadata Publisher - A directory that tells which document type a participant supports and which access point to use. (Phone book for Peppol)

SML: Service Metadata Locator - A central DNS-based lookup service that points to the correct SMP. Customers do not interact with it directy, only Access Points do.

Peppol BIS: Business Interoperability Specifications - Peppol standards that define which data fields are mandatory, business rules, and validation logic.

UBL XML: Universal Business Language - The XML syntax used by most Peppol documents.

   Peppol BIS -Rules

   Peppol UBL -Structure

Document Type ID: Identifies the document being sent; used in routing and validation. 

   Example: urn:peppol.eu:bis:peppol31a:invoice:3

Customization ID: Specifies the Peppol profile/version being used; critical for correct validation

AS4: The secure messaging protocol used by Peppol; Includes encryption, data signatures, and reliable delivery

Sender/Receiver: Both must be Peppol participants using certified Access Points.

Endpoint: A logical destination defined by the Peppol ID + document type.

Validation: Checking documents against XML schema, Peppol BIS rules, country-specific requirements

Common Document Types: Invoice, Credit Note, Order, Order Response, Despatch Advice (ASN), Catalog