diff --git a/invenio.cfg b/invenio.cfg
index 8dd9ddb5..9d955672 100644
--- a/invenio.cfg
+++ b/invenio.cfg
@@ -1105,6 +1105,15 @@ APP_RDM_RECORD_EXPORTERS = {
         "params": {"options": {"indent": 2, "sort_keys": True}},
         "content-type": "application/vnd.datacite.datacite+json",
         "filename": "{id}.json",
+    },
+    "datacite-xml": {
+        "name": _("DataCite XML"),
+        "serializer": (
+            "zenodo_rdm.serializers:ZenodoDataciteXMLSerializer"
+        ),
+        "params": {},
+        "content-type": "application/vnd.datacite.datacite+xml",
+        "filename": "{id}.xml",
     },
      "cff": {
         "name": _("Citation File Format"),
@@ -1113,4 +1122,5 @@ APP_RDM_RECORD_EXPORTERS = {
         "content-type": "application/x-yaml",
         "filename": "{id}.yaml",
     },
+    
 }
\ No newline at end of file
diff --git a/site/zenodo_rdm/serializers/__init__.py b/site/zenodo_rdm/serializers/__init__.py
index d1c1ac04..9e631dab 100644
--- a/site/zenodo_rdm/serializers/__init__.py
+++ b/site/zenodo_rdm/serializers/__init__.py
@@ -9,11 +9,12 @@
 from .bibtex import ZenodoBibtexSerializer
 from .cff import ZenodoCFFSerializer
 from .codemeta import ZenodoCodemetaSerializer
-from .datacite import ZenodoDataciteJSONSerializer
+from .datacite import ZenodoDataciteJSONSerializer, ZenodoDataciteXMLSerializer
 
 __all__ = (
     "ZenodoBibtexSerializer",
     "ZenodoCodemetaSerializer",
     "ZenodoDataciteJSONSerializer",
+    "ZenodoDataciteXMLSerializer",
     "ZenodoCFFSerializer",
 )
diff --git a/site/zenodo_rdm/serializers/datacite.py b/site/zenodo_rdm/serializers/datacite.py
index 2f78e836..61d571e6 100644
--- a/site/zenodo_rdm/serializers/datacite.py
+++ b/site/zenodo_rdm/serializers/datacite.py
@@ -6,9 +6,10 @@
 # it under the terms of the MIT License; see LICENSE file for more details.
 """Zenodo datacite serializer."""
 
+from datacite import schema43
 from flask import current_app
 from flask_resources import BaseListSchema, MarshmallowSerializer
-from flask_resources.serializers import JSONSerializer
+from flask_resources.serializers import JSONSerializer, SimpleSerializer
 from invenio_rdm_records.contrib.journal.processors import JournalDataciteDumper
 from invenio_rdm_records.resources.serializers.datacite.schema import DataCite43Schema
 from marshmallow import missing
@@ -25,9 +26,9 @@ def get_related_identifiers(self, obj):
             _url = f"{current_app.config['SWH_UI_BASE_URL']}/{swhid}"
             ret.append(
                 {
-                    "relation": "isIdenticalTo",
                     "relatedIdentifier": _url,
-                    "relatedIdentifierType": "url",
+                    "relatedIdentifierType": "URL",
+                    "relationType": "IsIdenticalTo",
                 }
             )
         return ret or missing
@@ -45,3 +46,18 @@ def __init__(self, **options):
             schema_kwargs={"dumpers": [JournalDataciteDumper()]},  # Order matters
             **options,
         )
+
+
+class ZenodoDataciteXMLSerializer(MarshmallowSerializer):
+    """Zenodo Datacite XML serializer."""
+
+    def __init__(self, **options):
+        """Instantiate serializer."""
+        encoder = options.get("encoder", schema43.tostring)
+        super().__init__(
+            format_serializer_cls=SimpleSerializer,
+            object_schema_cls=ZenodoDataciteSchema,
+            list_schema_cls=BaseListSchema,
+            schema_kwargs={"dumpers": [JournalDataciteDumper()]},  # Order matters
+            encoder=encoder,
+        )