An ESEF file is only allowed to contain data of a single issuer. If you see the error description "All entity identifiers and schemes in contexts MUST have identical content" it means that multiple entity identifiers appear within the report.
An ESEF file is only allowed to contain data of a single issuer. If you see the error description "All entity identifiers and schemes in contexts MUST have identical content" it means that multiple entity identifiers appear within the report.