UPO

When the invoice is accepted by KSeF, it assigns special KSeF Reference Number. This special number is a legal confirmation of the fact that invoice has been received and accepted.

Additionally, A-Cube provides UPO (Urzędowe Poświadczenie Odbioru) for each invoice.

UPO details (XML) can be downloaded by special button on the details of the invoice in Dashboard or by API.

curl -i -X GET \
    'http://pl-sandbox.api.acubeapi.com/invoices/\{uuid}/upo' \
    --header 'Accept: application/xml' \
    --header 'Authorization: YOUR_API_KEY_HERE'