Identification of the issuing agency of the EndpointID.

Usage
Mandatory
Example value
NO:ORGNR
Rules
Identifier/Error message Flag
OP-T14-R002
An Endpoint Identifier Scheme MUST be from the list of PEPPOL Party Identifiers described in the "PEPPOL Policy for using Identifiers".
fatal
EUGEN-T14-R023
An endpoint identifier MUST have a scheme identifier attribute.
fatal