Question 1

What is self-billing and how does it work?

Accepted Answer

In self-billing, the buyer creates the invoice on behalf of the supplier.

Question 2

Which VAT codes do I use?

Accepted Answer

Use 'S' for standard rate, 'AE' for EU, and 'G' for export outside EU.

Question 3

Can I upload my own UBL XML?

Accepted Answer

Yes, directly via the send document endpoint.

Question 4

What happens after an invoice is successfully delivered?

Accepted Answer

It appears automatically in the recipient's Peppol inbox.

Question 5

What happens if the recipient is unreachable?

Accepted Answer

The invoice is not delivered and you receive an error message.

Question 6

What if I don't switch to Peppol by 2026 as a Belgian company?

Accepted Answer

From January 1, 2026, e-invoicing via Peppol is mandatory for all Belgian companies. Not switching can lead to fines and practical issues.

Question 7

What is the difference between an e-invoice and a PDF invoice?

Accepted Answer

E-invoices are structured and automatically processable.

Question 8

Can I add an email address to my invoices?

Accepted Answer

Yes, but only when sending a raw UBL document.

Question 9

Can I send an XML document directly via the API?

Accepted Answer

Yes, via the send document endpoint, as long as the XML document is fully Peppol/UBL compliant.

Question 10

Can I view logs of sent documents?

Accepted Answer

Yes, via the dashboard and via API responses (status/log fields).

Question 11

How can I download my sent or received documents?

Accepted Answer

You can download documents as a complete package (ZIP) or just the XML file via the API or dashboard.

Question 12

How can I see feedback when a document is rejected by the recipient?

Accepted Answer

Not always — this depends on the receiving software.

Question 13

How can I test without sending real invoices?

Accepted Answer

Use the Recommand Playground to safely test without sending documents over the Peppol network.

Question 14

How do I add a structured reference (OGM) correctly?

Accepted Answer

Use the numeric format, without "+++" or "/".

Question 15

How do I use the Playground environment?

Accepted Answer

The playground is a separate test environment without real Peppol delivery.

Question 16

Must I register recipients in my team first to be able to send?

Accepted Answer

In production no, in playground yes.

Question 17

What is the correct format for a Peppol address?

Accepted Answer

Use the ISO6523 format, e.g. 0208:0123456789 or 0088:5400000000001.

Question 18

What is the difference between production and playground?

Accepted Answer

The playground is for testing; production for real documents on the Peppol network.

Question 19

How can I check if a company is active on the Peppol network?

Accepted Answer

Use our /verify API endpoint or our Peppol search to verify if a Peppol address is valid.

Question 20

How does Peppol know where to route my invoice?

Accepted Answer

Via the recipient's unique Peppol ID.

Question 21

What is a GLN and when should I use it?

Accepted Answer

A GLN identifies specific locations within an organization and uses scheme 0088 on Peppol.

Question 22

What is a Peppol Access Point?

Accepted Answer

Your digital mailbox on the Peppol network.

Question 23

Why do companies register only as recipients?

Accepted Answer

Because Peppol only needs to register recipients — senders operate via their Access Point.

Question 24

Can a company use multiple Peppol Access Points?

Accepted Answer

Per document type, a company can have only one active receiving Access Point.

Question 25

Can I manage multiple customers within one account?

Accepted Answer

Yes, Recommand supports teams with multiple companies.

Question 26

Can I see if my invoice was read?

Accepted Answer

You can see when the document was marked as read within your team, but not if the recipient opened it.

Question 27

Can I use Recommand for sending only or also for receiving?

Accepted Answer

You choose whether to use Recommand for sending, receiving or both. Both options are supported.

Question 28

Can I whitelabel integrate Recommand into my own software?

Accepted Answer

Yes, many software vendors use the Recommand API to offer Peppol sending under their own brand.

Question 29

How do I get started with Recommand?

Accepted Answer

Create a free account, set up a playground environment and send your first invoice right away via the API or the dashboard.

Question 30

How does the Recommand API work?

Accepted Answer

The API allows you to send, receive and manage Peppol documents in JSON or UBL XML.

Question 31

How long does it take for an invoice to reach the recipient?

Accepted Answer

In most cases within seconds, depending on the receiving system.

Question 32

Is pricing per company or per team?

Accepted Answer

Per team - document volume is pooled across all companies, with no fee per company.

Question 33

Is support included?

Accepted Answer

Yes, all paid plans include email support.

Question 34

Must I register as a receiver to receive Peppol invoices?

Accepted Answer

Yes, to receive invoices via Peppol, you must be registered as an SMP recipient.

Question 35

What is Recommand and what can I use it for?

Accepted Answer

Recommand is an open-source Peppol Access Point that lets companies send and receive invoices and other documents via the Peppol network.

Question 36

Where can I get help?

Accepted Answer

You can reach us by email or join our community on Discord and GitHub.

Question 37

Are documents sent via Peppol publicly visible?

Accepted Answer

No. Documents on Peppol are not public and are exchanged encrypted.

Question 38

Is Peppol more secure than email?

Accepted Answer

Absolutely. The Peppol network uses verification, encryption and controlled access.

Question 39

Is Recommand secure and certified?

Accepted Answer

Yes, Recommand meets all Peppol security and certification standards.

Question 40

Does the government automatically receive documents sent over Peppol?

Accepted Answer

No. Documents only go to the addressed participant.

Question 41

What is Peppol?

Accepted Answer

A network for the secure, structured exchange of business documents.

Question 42

Which documents can be sent over the Peppol network?

Accepted Answer

Invoices, but also credit notes, orders, despatch advices, etc.