@Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (!(o instanceof BulkResponse)) {
            return false;
        }
        BulkResponse that = (BulkResponse) o;
        return Objects.equals(bulkSuccessfulResults, that.bulkSuccessfulResults)
                && Objects.equals(bulkErrorResults, that.bulkErrorResults);
    }
Key - entityId Value - error message processing this entity
common/src/main/java/com/netflix/conductor/common/model/BulkResponse.java