1. Getting Started with Invoicing via PEPPOL

   1. About the Format and the European Standard
   2. Invoice Content Requirements for PEPPOL BIS Billing v3
   3. How Do I Test Against PEPPOL BIS V3? (Validation of Your Test Invoices)
   4. Most Common Approved Unit Codes in PEPPOL BIS Billing V3
   5. Swedish Means of Payment in PEPPOL BIS 3

2. Interpreting Error Messages

   1. Common Errors That Can Occur (PEPPOL)
   2. PEPPOL Errors Requiring Corrections in the Invoice Data

3. More Information

   1. Frequently Asked Questions about PEPPOL

Here are the most common units of measurement that can be used as unit codes in your invoices according to the Peppol BIS standard.

Complete list for UN/ECE Rec 20