diff --git a/api/current.txt b/api/current.txt
index d243652e56a94..53b099a27d492 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -33878,6 +33878,7 @@ package android.provider {
     field public static final java.lang.String EXTRA_RECIPIENT_CONTACT_CHAT_ID = "android.provider.extra.RECIPIENT_CONTACT_CHAT_ID";
     field public static final java.lang.String EXTRA_RECIPIENT_CONTACT_NAME = "android.provider.extra.RECIPIENT_CONTACT_NAME";
     field public static final java.lang.String EXTRA_RECIPIENT_CONTACT_URI = "android.provider.extra.RECIPIENT_CONTACT_URI";
+    field public static final java.lang.String EXTRA_SENDER_ACCOUNT_HASH = "android.provider.extra.SENDER_ACCOUNT_HASH";
     field public static final java.lang.String INVITE_CONTACT = "com.android.contacts.action.INVITE_CONTACT";
     field public static final java.lang.String METADATA_ACCOUNT_TYPE = "android.provider.account_type";
     field public static final java.lang.String METADATA_MIMETYPE = "android.provider.mimetype";
diff --git a/api/system-current.txt b/api/system-current.txt
index 97048c65a3ae5..45bc8e8df8c24 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -36758,6 +36758,7 @@ package android.provider {
     field public static final java.lang.String EXTRA_RECIPIENT_CONTACT_CHAT_ID = "android.provider.extra.RECIPIENT_CONTACT_CHAT_ID";
     field public static final java.lang.String EXTRA_RECIPIENT_CONTACT_NAME = "android.provider.extra.RECIPIENT_CONTACT_NAME";
     field public static final java.lang.String EXTRA_RECIPIENT_CONTACT_URI = "android.provider.extra.RECIPIENT_CONTACT_URI";
+    field public static final java.lang.String EXTRA_SENDER_ACCOUNT_HASH = "android.provider.extra.SENDER_ACCOUNT_HASH";
     field public static final java.lang.String INVITE_CONTACT = "com.android.contacts.action.INVITE_CONTACT";
     field public static final java.lang.String METADATA_ACCOUNT_TYPE = "android.provider.account_type";
     field public static final java.lang.String METADATA_MIMETYPE = "android.provider.mimetype";
diff --git a/api/test-current.txt b/api/test-current.txt
index 848b5044062d8..670712185c0e9 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -34005,6 +34005,7 @@ package android.provider {
     field public static final java.lang.String EXTRA_RECIPIENT_CONTACT_CHAT_ID = "android.provider.extra.RECIPIENT_CONTACT_CHAT_ID";
     field public static final java.lang.String EXTRA_RECIPIENT_CONTACT_NAME = "android.provider.extra.RECIPIENT_CONTACT_NAME";
     field public static final java.lang.String EXTRA_RECIPIENT_CONTACT_URI = "android.provider.extra.RECIPIENT_CONTACT_URI";
+    field public static final java.lang.String EXTRA_SENDER_ACCOUNT_HASH = "android.provider.extra.SENDER_ACCOUNT_HASH";
     field public static final java.lang.String INVITE_CONTACT = "com.android.contacts.action.INVITE_CONTACT";
     field public static final java.lang.String METADATA_ACCOUNT_TYPE = "android.provider.account_type";
     field public static final java.lang.String METADATA_MIMETYPE = "android.provider.mimetype";
diff --git a/core/java/android/provider/ContactsContract.java b/core/java/android/provider/ContactsContract.java
index a0d16bc2d9b05..dac835463c02a 100644
--- a/core/java/android/provider/ContactsContract.java
+++ b/core/java/android/provider/ContactsContract.java
@@ -44,7 +44,6 @@ import android.text.TextUtils;
 import android.util.DisplayMetrics;
 import android.util.Pair;
 import android.view.View;
-
 import java.io.ByteArrayInputStream;
 import java.io.IOException;
 import java.io.InputStream;
@@ -8913,11 +8912,15 @@ public final class ContactsContract {
          * ambiguous then the activity should prompt the user for the recipient to send the message
          * to.
          * <p>
+         * Voice Assistant may provide additional information to messaging app about which account
+         * to use for sending a message by populating {@link #EXTRA_SENDER_ACCOUNT_HASH}.
+         * <p>
          * Output: nothing
          *
          * @see #EXTRA_RECIPIENT_CONTACT_URI
          * @see #EXTRA_RECIPIENT_CONTACT_CHAT_ID
          * @see #EXTRA_RECIPIENT_CONTACT_NAME
+         * @see #EXTRA_SENDER_ACCOUNT_HASH
          * @see #METADATA_ACCOUNT_TYPE
          * @see #METADATA_MIMETYPE
          */
@@ -8974,6 +8977,16 @@ public final class ContactsContract {
         public static final String EXTRA_RECIPIENT_CONTACT_NAME =
                 "android.provider.extra.RECIPIENT_CONTACT_NAME";
 
+        /**
+         * This optional extra specifies the hash of the account that should be used by messaging
+         * app for sending voice message with {@link #ACTION_VOICE_SEND_MESSAGE_TO_CONTACTS}. The
+         * value of this extra is a {@code String} and should be the value of {@link
+         * android.accounts.Account#hashCode()} for some account returned by {@link
+         * android.accounts.AccountManager#getAccounts()}.
+         */
+        public static final String EXTRA_SENDER_ACCOUNT_HASH =
+                "android.provider.extra.SENDER_ACCOUNT_HASH";
+
         /**
          * A string associated with an {@link #ACTION_VOICE_SEND_MESSAGE_TO_CONTACTS} activity
          * describing {@link RawContacts#ACCOUNT_TYPE} for the corresponding Contacts Provider