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# Using GLN numbers for Peppol invoices

#### Your customer can only receive Peppol invoices based on a GLM number. What now?
If your customer indicates that they can only receive invoices via Peppol using a GLN number, you can specify this for your customer.
To do this, open a customer page and click on “use GLN number” under VAT number. 

![Add GLN number](https://storage.crisp.chat/users/helpdesk/website/-/9/4/4/9/9449cf8917f7b800/peppol-gln_g67d13.png)

||| When you work with a GLN number, you cannot specify a VAT number; it is either a VAT number or a GLN number.