Error code PEPPOL-EN16931-CL001
What error PEPPOL-EN16931-CL001 means
PEPPOL-EN16931-CL001 is a rule of Peppol BIS Billing 3.0. If your invoice breaks it, the official rule text below says what is expected. The fields it names are listed under it.
This page shows the official rule only; a plain-language explanation hasn't been written yet.
The official rule
“Mime code must be according to subset of IANA code list.”
Official text, in the language the rule set publishes it in.