diff --git a/backend/src/object/field-mapper.service.ts b/backend/src/object/field-mapper.service.ts
index 5c55c0d..1de9b1b 100644
--- a/backend/src/object/field-mapper.service.ts
+++ b/backend/src/object/field-mapper.service.ts
@@ -152,6 +152,7 @@ export class FieldMapperService {
       'phone': 'text',
       'picklist': 'select',
       'multipicklist': 'multiSelect',
+      'multi_picklist': 'multiSelect',
       'lookup': 'belongsTo',
       'master-detail': 'belongsTo',
       'currency': 'currency',
diff --git a/backend/src/object/object.service.ts b/backend/src/object/object.service.ts
index dd3a1b1..263b00f 100644
--- a/backend/src/object/object.service.ts
+++ b/backend/src/object/object.service.ts
@@ -336,13 +336,27 @@ export class ObjectService {
       updated_at: knex.fn.now(),
     };
     
-    // Store relationDisplayField in UI metadata if provided
-    if (data.relationDisplayField || data.relationObjects || data.relationTypeField) {
-      fieldData.ui_metadata = JSON.stringify({
-        relationDisplayField: data.relationDisplayField,
-        relationObjects: data.relationObjects,
-        relationTypeField: data.relationTypeField,
-      });
+    // Build UI metadata from all sources
+    const uiMetadataObj: any = {};
+
+    // Merge general uiMetadata (options, placeholder, helpText, etc.)
+    if (data.uiMetadata && typeof data.uiMetadata === 'object') {
+      Object.assign(uiMetadataObj, data.uiMetadata);
+    }
+
+    // Store relation-specific fields in UI metadata if provided
+    if (data.relationDisplayField) {
+      uiMetadataObj.relationDisplayField = data.relationDisplayField;
+    }
+    if (data.relationObjects) {
+      uiMetadataObj.relationObjects = data.relationObjects;
+    }
+    if (data.relationTypeField) {
+      uiMetadataObj.relationTypeField = data.relationTypeField;
+    }
+
+    if (Object.keys(uiMetadataObj).length > 0) {
+      fieldData.ui_metadata = JSON.stringify(uiMetadataObj);
     }
     
     await knex('field_definitions').insert(fieldData);
diff --git a/frontend/components/fields/FieldRenderer.vue b/frontend/components/fields/FieldRenderer.vue
index 6574b23..fe5cc55 100644
--- a/frontend/components/fields/FieldRenderer.vue
+++ b/frontend/components/fields/FieldRenderer.vue
@@ -249,6 +249,51 @@ const handleRelationTypeUpdate = (value: string | null) => {
         </SelectContent>
       </Select>
 
+      <!-- Multi-Select -->
+      <div v-else-if="field.type === FieldType.MULTI_SELECT" class="space-y-2">
+        <div class="flex flex-wrap gap-1 min-h-[36px] rounded-md border border-input bg-background px-3 py-2">
+          <Badge
+            v-for="selectedVal in (Array.isArray(value) ? value : [])"
+            :key="String(selectedVal)"
+            variant="secondary"
+            class="gap-1 cursor-pointer"
+            @click="value = (value || []).filter((v: any) => v !== selectedVal)"
+          >
+            {{ field.options?.find(o => o.value === selectedVal)?.label || selectedVal }}
+            <span class="text-xs ml-1">&times;</span>
+          </Badge>
+          <span v-if="!value || (Array.isArray(value) && value.length === 0)" class="text-sm text-muted-foreground">
+            {{ field.placeholder || 'Select options...' }}
+          </span>
+        </div>
+        <div class="space-y-1">
+          <div
+            v-for="option in field.options"
+            :key="String(option.value)"
+            class="flex items-center gap-2"
+          >
+            <Checkbox
+              :id="`${field.id}-${option.value}`"
+              :checked="Array.isArray(value) && value.includes(option.value)"
+              @update:checked="(checked: boolean) => {
+                const current = Array.isArray(value) ? [...value] : []
+                if (checked) {
+                  current.push(option.value)
+                } else {
+                  const idx = current.indexOf(option.value)
+                  if (idx > -1) current.splice(idx, 1)
+                }
+                value = current
+              }"
+              :disabled="field.isReadOnly"
+            />
+            <Label :for="`${field.id}-${option.value}`" class="text-sm font-normal cursor-pointer">
+              {{ option.label }}
+            </Label>
+          </div>
+        </div>
+      </div>
+
       <!-- Boolean - Checkbox -->
       <div v-else-if="field.type === FieldType.BOOLEAN" class="flex items-center gap-2">
         <Checkbox :id="field.id" v-model:checked="value" :disabled="field.isReadOnly" />