SunsetClaus has been active since 2018 and the Belgian Official Gazette contains no insolvency or warning signals. The 2025 annual accounts show equity of €4.4m and a net result of -€135,445. Equity has been growing by about 23% per year since 2018. The computed 12-month bankruptcy probability is 0.1% (very low).
Registered office clauseThe articles name the region of the registered office. The language of official documents depends on that region, among other things.
“Région de Bruxelles-Capitale, créés Belgique ou étranger par organe administration”
This enterprise or VAT number is not in the Peppol Directory. Being listed there is voluntary, so the company can still receive invoices via Peppol.
Next steps
Try sending from your invoicing software. If that fails, ask the customer whether they already receive via Peppol.
If the customer is not ready yet, you may send the invoice another way, for example as a PDF; if you send it electronically, you need their agreement on a secure channel. The invoice remains valid; it is the customer, not you, who risks a penalty. FPS Finance
Follow this company and you will hear the next morning if it appears in the Peppol register.