Jens Dossé

In https://github.com/sdmx-twg/sdmx-json/blob/master/structure-message/docs/1-sdmx-json-field-guide.md#error, https://github.com/sdmx-twg/sdmx-json/blob/master/data-message/docs/1-sdmx-json-field-guide.md#error and https://github.com/sdmx-twg/sdmx-json/blob/master/metadata-message/docs/1-sdmx-json-field-guide.md#statusmessage, the documentation still says: "_code - Number. Provides a code number for the error message. Code numbers are defined in the SDMX 2.1 Web Services...

1) It must be possible to omit the attachment `relationship` of referential metadata attributes defined in the dsd, as those cannot always be fixed to either the dataflow, a fixed...