diff --git a/proto/src/metrics_constants/metrics_constants.proto b/proto/src/metrics_constants/metrics_constants.proto
index 5a4892c75d9e1..f40a1eea255be 100644
--- a/proto/src/metrics_constants/metrics_constants.proto
+++ b/proto/src/metrics_constants/metrics_constants.proto
@@ -7414,6 +7414,14 @@ message MetricsEvent {
     // Note: Gear icon is shown next to gesture navigation preference and opens sensitivity dialog
     SETTINGS_GESTURE_NAV_BACK_SENSITIVITY_DLG = 1748;
 
+
+
+    // ACTION: Chooser > User taps a system-provided target such as copy
+    //   SUBTYPE: Index of target
+    // CATEGORY: GLOBAL_SYSTEM_UI
+    // OS: Q - QPR1
+    ACTION_ACTIVITY_CHOOSER_PICKED_SYSTEM_TARGET = 1749;
+
     // ---- End Q Constants, all Q constants go above this line ----
     // Add new aosp constants above this line.
     // END OF AOSP CONSTANTS