diff --git a/public/plugins/plugin-list.json b/public/plugins/plugin-list.json
index 63c9e1e..a8c7ff2 100644
--- a/public/plugins/plugin-list.json
+++ b/public/plugins/plugin-list.json
@@ -40,6 +40,14 @@
       "defaultBuckets": ["wis2box-public"],
       "defaultFilePattern": "^WIGOS_(\\d-\\d+-\\d+-\\w+)_.*\\.bufr4$",
       "hint": "The regex pattern must contain the WIGOS station identifier"
+    },
+    {
+      "title": "CAP messages",
+      "id": "wis2box.data.cap_message.CAPMessageData",
+      "defaultFileExtension": "xml",
+      "defaultBuckets": ["wis2box-incoming"],
+      "defaultFilePattern": "^.*\\.xml$",
+      "hint": ""
     }
   ],
   "templates": [
diff --git a/src/components/DatasetEditorForm.vue b/src/components/DatasetEditorForm.vue
index f21ed40..871fec7 100644
--- a/src/components/DatasetEditorForm.vue
+++ b/src/components/DatasetEditorForm.vue
@@ -1003,6 +1003,8 @@ export default defineComponent({
                 console.error(error);
                 // Display error message to the user
                 message.value = 'Error loading discovery metadata list.';
+                // Empty items
+                items.value = []
             }
             // Now add the option to create a new dataset, regardless of whether
             // the list could be loaded or not
diff --git a/src/templates/cap-template.json b/src/templates/cap-template.json
new file mode 100644
index 0000000..daf9a79
--- /dev/null
+++ b/src/templates/cap-template.json
@@ -0,0 +1,35 @@
+{
+  "label": "weather/advisories-warnings",
+  "title": "CAP Alerts published by $CENTRE_ID",
+  "identifier": "urn:wmo:md:$CENTRE_ID:$DATA_POLICY.weather.cap",
+  "topicHierarchy": "$CENTRE_ID/data/$DATA_POLICY/weather/advisories-warnings",
+  "language": "en",
+  "resolution": "",
+  "keywords": [
+      "CAP",
+      "warnings",
+      "alerts"
+  ],
+  "themes": [
+      {
+      "concepts": [{ "id": "weather", "label": "weather" }],
+      "scheme": "http://codes.wmo.int/wis/topic-hierarchy/earth-system-discipline"
+      }
+  ],
+  "wis2box": {
+      "retention": "P30D",
+      "topic_hierarchy": "$CENTRE_ID.data.$DATA_POLICY.weather.advisories-warnings",
+      "data_mappings": {
+      "plugins": {
+          "xml": [
+            {
+                "plugin": "wis2box.data.cap_message.CAPMessageData",
+                "notify": true,
+                "buckets": ["wis2box-incoming"],
+                "file-pattern": "^.*\\.xml$"
+            }
+          ]
+      }
+      }
+  }
+}
\ No newline at end of file