According to https://github.com/pod4lib/aggregator/wiki/Data-requirements#record-delete-data MARC records using d in position 05in the MARC Leader are considered deleted. Deletes sent as MARC21 binary records may be included in a file with added and updated records. Do an additional marc transformation for UUIDS selected as deletes.
According to https://github.com/pod4lib/aggregator/wiki/Data-requirements#record-delete-data MARC records using d in position 05in the MARC Leader are considered deleted. Deletes sent as MARC21 binary records may be included in a file with added and updated records. Do an additional marc transformation for UUIDS selected as deletes.