Must be according to "PEPPOL policy for identifiers", example NO:ORGNR
| Identifier/Error message | Flag |
|---|---|
| OP-T01-R004 An Enpoint Identifier Scheme identifier MUST be from the list of PEPPOL Party Identifiers described in the "PEPPOL Policy for using Identifiers". |
fatal |
| EUGEN-T01-R011 An endpoint identifier MUST have a scheme identifier attribute |
fatal |