diff --git a/proto/src/metrics_constants.proto b/proto/src/metrics_constants.proto
index fc5a9fc6e088f..c81bd1b4c04d2 100644
--- a/proto/src/metrics_constants.proto
+++ b/proto/src/metrics_constants.proto
@@ -3452,6 +3452,12 @@ message MetricsEvent {
     // FIELD - Rank of the clicked Settings search result
     FIELD_SETTINGS_SERACH_RESULT_RANK = 842;
 
+    // OPEN: Settings > Apps > Default Apps > Assist >  Default assist
+    DEFAULT_ASSIST_PICKER = 843;
+
+    // OPEN: Settings > Apps > Default Apps > Assist >  Default voice input
+    DEFAULT_VOICE_INPUT_PICKER = 844;
+
     // ---- End O Constants, all O constants go above this line ----
 
     // Add new aosp constants above this line.