PEPPOL BIS

Definition

Business Interoperability Specifications defining document rules (commonly BIS 3.0 for invoices).

Defines validation rules, allowed code lists, and required invoice content for the network.

Used with UBL syntax for invoices and credit notes.

A network and specifications for exchanging e-procurement documents, including e-invoices.

Universal Business Language: an XML library for standard business documents.

Process of checking an e-invoice against syntax rules and business rules.