diff --git a/internal/proto/analytics/connections_log.proto b/internal/proto/analytics/connections_log.proto
index 5cd5e0d2..bc6702bb 100644
--- a/internal/proto/analytics/connections_log.proto
+++ b/internal/proto/analytics/connections_log.proto
@@ -340,7 +340,7 @@ message ConnectionsLog {
     optional string connection_token = 8;
   }
 
-  // Next Id: 19
+  // Next Id: 20
   message ErrorCode {
     // The direction (incoming vs outgoing) of this error.
     optional location.nearby.proto.connections.ConnectionAttemptDirection
@@ -375,6 +375,7 @@ message ConnectionsLog {
       location.nearby.errorcode.proto.SendPayloadError send_payload_error = 17;
       location.nearby.errorcode.proto.ReceivePayloadError
           receive_payload_error = 18;
+      location.nearby.errorcode.proto.UpgradeError upgrade_error = 19;
     }
 
     // The token use to identify this established connection.
diff --git a/proto/errorcode/error_code_enums.proto b/proto/errorcode/error_code_enums.proto
index 32900bb6..7cf8ae6d 100644
--- a/proto/errorcode/error_code_enums.proto
+++ b/proto/errorcode/error_code_enums.proto
@@ -69,6 +69,7 @@ enum Event {
   SEND_PAYLOAD = 11;
   CANCEL_PAYLOAD = 12;
   RECEIVE_PAYLOAD = 13;
+  UPGRADE = 14;
 }
 
 // The error to identify the common failure for all mediums. The range between 0
@@ -349,6 +350,16 @@ enum ReceivePayloadError {
   // Next ID :33
 }
 
+// The error for event UPGRADE. The range between 31 and 99.
+enum UpgradeError {
+  // The default value for clearcut
+  UNKNOWN_UPGRADE_ERROR = 31;
+  // System error, failed to create a wifi p2p group.
+  CREATE_P2P_GROUP_FAILED = 32;
+
+  // Next ID :33
+}
+
 enum Description {
   reserved 28, 29;