diff --git a/core/java/android/service/notification/ZenModeConfig.java b/core/java/android/service/notification/ZenModeConfig.java
index 4cc379e987a56..e285b1c771221 100644
--- a/core/java/android/service/notification/ZenModeConfig.java
+++ b/core/java/android/service/notification/ZenModeConfig.java
@@ -777,6 +777,8 @@ public class ZenModeConfig implements Parcelable {
         final int calls = safeInt(parser, ALLOW_ATT_CALLS_FROM, ZenPolicy.PEOPLE_TYPE_UNSET);
         final int messages = safeInt(parser, ALLOW_ATT_MESSAGES_FROM, ZenPolicy.PEOPLE_TYPE_UNSET);
         final int repeatCallers = safeInt(parser, ALLOW_ATT_REPEAT_CALLERS, ZenPolicy.STATE_UNSET);
+        final int conversations = safeInt(parser, ALLOW_ATT_CONV_FROM,
+                ZenPolicy.CONVERSATION_SENDERS_UNSET);
         final int alarms = safeInt(parser, ALLOW_ATT_ALARMS, ZenPolicy.STATE_UNSET);
         final int media = safeInt(parser, ALLOW_ATT_MEDIA, ZenPolicy.STATE_UNSET);
         final int system = safeInt(parser, ALLOW_ATT_SYSTEM, ZenPolicy.STATE_UNSET);
@@ -795,6 +797,10 @@ public class ZenModeConfig implements Parcelable {
             builder.allowRepeatCallers(repeatCallers == ZenPolicy.STATE_ALLOW);
             policySet = true;
         }
+        if (conversations != ZenPolicy.CONVERSATION_SENDERS_UNSET) {
+            builder.allowConversations(conversations);
+            policySet = true;
+        }
         if (alarms != ZenPolicy.STATE_UNSET) {
             builder.allowAlarms(alarms == ZenPolicy.STATE_ALLOW);
             policySet = true;
@@ -870,6 +876,7 @@ public class ZenModeConfig implements Parcelable {
         writeZenPolicyState(ALLOW_ATT_MESSAGES_FROM, policy.getPriorityMessageSenders(), out);
         writeZenPolicyState(ALLOW_ATT_REPEAT_CALLERS, policy.getPriorityCategoryRepeatCallers(),
                 out);
+        writeZenPolicyState(ALLOW_ATT_CONV_FROM, policy.getPriorityConversationSenders(), out);
         writeZenPolicyState(ALLOW_ATT_ALARMS, policy.getPriorityCategoryAlarms(), out);
         writeZenPolicyState(ALLOW_ATT_MEDIA, policy.getPriorityCategoryMedia(), out);
         writeZenPolicyState(ALLOW_ATT_SYSTEM, policy.getPriorityCategorySystem(), out);
@@ -894,6 +901,10 @@ public class ZenModeConfig implements Parcelable {
             if (val != ZenPolicy.PEOPLE_TYPE_UNSET) {
                 out.attributeInt(null, attr, val);
             }
+        } else if (Objects.equals(attr, ALLOW_ATT_CONV_FROM)) {
+            if (val != ZenPolicy.CONVERSATION_SENDERS_UNSET) {
+                out.attributeInt(null, attr, val);
+            }
         } else {
             if (val != ZenPolicy.STATE_UNSET) {
                 out.attributeInt(null, attr, val);
diff --git a/core/java/android/service/notification/ZenPolicy.java b/core/java/android/service/notification/ZenPolicy.java
index a04f07380ce87..a892570f589c1 100644
--- a/core/java/android/service/notification/ZenPolicy.java
+++ b/core/java/android/service/notification/ZenPolicy.java
@@ -498,11 +498,11 @@ public final class ZenPolicy implements Parcelable {
             mZenPolicy.mPriorityCategories.set(category, STATE_UNSET);
 
             if (category == PRIORITY_CATEGORY_MESSAGES) {
-                mZenPolicy.mPriorityMessages = STATE_UNSET;
+                mZenPolicy.mPriorityMessages = PEOPLE_TYPE_UNSET;
             } else if (category == PRIORITY_CATEGORY_CALLS) {
-                mZenPolicy.mPriorityCalls = STATE_UNSET;
+                mZenPolicy.mPriorityCalls = PEOPLE_TYPE_UNSET;
             } else if (category == PRIORITY_CATEGORY_CONVERSATIONS) {
-                mZenPolicy.mConversationSenders = STATE_UNSET;
+                mZenPolicy.mConversationSenders = CONVERSATION_SENDERS_UNSET;
             }
 
             return this;
diff --git a/services/tests/uiservicestests/src/com/android/server/notification/ZenModeConfigTest.java b/services/tests/uiservicestests/src/com/android/server/notification/ZenModeConfigTest.java
index 9dca23566b98e..949455a18570e 100644
--- a/services/tests/uiservicestests/src/com/android/server/notification/ZenModeConfigTest.java
+++ b/services/tests/uiservicestests/src/com/android/server/notification/ZenModeConfigTest.java
@@ -20,6 +20,7 @@ import static android.service.notification.ZenPolicy.CONVERSATION_SENDERS_IMPORT
 
 import static junit.framework.TestCase.assertEquals;
 import static junit.framework.TestCase.assertFalse;
+import static junit.framework.TestCase.assertNotNull;
 import static junit.framework.TestCase.assertNull;
 import static junit.framework.TestCase.assertTrue;
 
@@ -311,6 +312,92 @@ public class ZenModeConfigTest extends UiServiceTestCase {
         assertTrue(fromXml.isAutomaticActive());
     }
 
+    @Test
+    public void testZenPolicyXml_allUnset() throws Exception {
+        String tag = "tag";
+
+        ZenPolicy policy = new ZenPolicy.Builder().build();
+
+        TypedXmlSerializer out = Xml.newFastSerializer();
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        out.setOutput(new BufferedOutputStream(baos), "utf-8");
+        out.startDocument(null, true);
+        out.startTag(null, tag);
+        ZenModeConfig.writeZenPolicyXml(policy, out);
+        out.endTag(null, tag);
+        out.endDocument();
+
+        TypedXmlPullParser parser = Xml.newFastPullParser();
+        parser.setInput(new BufferedInputStream(
+                new ByteArrayInputStream(baos.toByteArray())), null);
+        parser.nextTag();
+        ZenPolicy fromXml = ZenModeConfig.readZenPolicyXml(parser);
+
+        // nothing was set, so we should have nothing from the parser
+        assertNull(fromXml);
+    }
+
+    @Test
+    public void testZenPolicyXml() throws Exception {
+        String tag = "tag";
+
+        ZenPolicy policy = new ZenPolicy.Builder()
+                .allowCalls(ZenPolicy.PEOPLE_TYPE_CONTACTS)
+                .allowMessages(ZenPolicy.PEOPLE_TYPE_NONE)
+                .allowConversations(ZenPolicy.CONVERSATION_SENDERS_IMPORTANT)
+                .allowRepeatCallers(true)
+                .allowAlarms(true)
+                .allowMedia(false)
+                .allowSystem(true)
+                .allowReminders(false)
+                .allowEvents(true)
+                .hideAllVisualEffects()
+                .showVisualEffect(ZenPolicy.VISUAL_EFFECT_AMBIENT, true)
+                .build();
+
+        TypedXmlSerializer out = Xml.newFastSerializer();
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        out.setOutput(new BufferedOutputStream(baos), "utf-8");
+        out.startDocument(null, true);
+        out.startTag(null, tag);
+        ZenModeConfig.writeZenPolicyXml(policy, out);
+        out.endTag(null, tag);
+        out.endDocument();
+
+        TypedXmlPullParser parser = Xml.newFastPullParser();
+        parser.setInput(new BufferedInputStream(
+                new ByteArrayInputStream(baos.toByteArray())), null);
+        parser.nextTag();
+        ZenPolicy fromXml = ZenModeConfig.readZenPolicyXml(parser);
+
+        assertNotNull(fromXml);
+        assertEquals(policy.getPriorityCategoryCalls(), fromXml.getPriorityCategoryCalls());
+        assertEquals(policy.getPriorityCallSenders(), fromXml.getPriorityCallSenders());
+        assertEquals(policy.getPriorityCategoryMessages(), fromXml.getPriorityCategoryMessages());
+        assertEquals(policy.getPriorityMessageSenders(), fromXml.getPriorityMessageSenders());
+        assertEquals(policy.getPriorityCategoryConversations(),
+                fromXml.getPriorityCategoryConversations());
+        assertEquals(policy.getPriorityConversationSenders(),
+                fromXml.getPriorityConversationSenders());
+        assertEquals(policy.getPriorityCategoryRepeatCallers(),
+                fromXml.getPriorityCategoryRepeatCallers());
+        assertEquals(policy.getPriorityCategoryAlarms(), fromXml.getPriorityCategoryAlarms());
+        assertEquals(policy.getPriorityCategoryMedia(), fromXml.getPriorityCategoryMedia());
+        assertEquals(policy.getPriorityCategorySystem(), fromXml.getPriorityCategorySystem());
+        assertEquals(policy.getPriorityCategoryReminders(), fromXml.getPriorityCategoryReminders());
+        assertEquals(policy.getPriorityCategoryEvents(), fromXml.getPriorityCategoryEvents());
+
+        assertEquals(policy.getVisualEffectFullScreenIntent(),
+                fromXml.getVisualEffectFullScreenIntent());
+        assertEquals(policy.getVisualEffectLights(), fromXml.getVisualEffectLights());
+        assertEquals(policy.getVisualEffectPeek(), fromXml.getVisualEffectPeek());
+        assertEquals(policy.getVisualEffectStatusBar(), fromXml.getVisualEffectStatusBar());
+        assertEquals(policy.getVisualEffectBadge(), fromXml.getVisualEffectBadge());
+        assertEquals(policy.getVisualEffectAmbient(), fromXml.getVisualEffectAmbient());
+        assertEquals(policy.getVisualEffectNotificationList(),
+                fromXml.getVisualEffectNotificationList());
+    }
+
     private ZenModeConfig getMutedRingerConfig() {
         ZenModeConfig config = new ZenModeConfig();
         // Allow alarms, media