1. Click Customers in the menu
2. Search for your customer and choose the company in the list
3. Click More actions
4. Choose Edit customer details
5. Scroll down to Peppol information, choose a custom name, and enter the customer’s Peppol ID
6. If the customer has additional Peppol addresses, click Add additional address
7. Click Update customer

Peppol ID uses the format 1234:1234567890. The first four figures are the identifier type, usually the country code in Peppol or “0088” for companies using GLN numbers. The following is the unique number for the organization, usually the company registration number.

If you don’t know your customer’s address, search for registered Peppol IDs here.