diff --git a/lib/eventreasons/eventreasons.go b/lib/eventreasons/eventreasons.go
index b2e885a..3dcfcd9 100644
--- a/lib/eventreasons/eventreasons.go
+++ b/lib/eventreasons/eventreasons.go
@@ -144,6 +144,9 @@ const (
 const (
 	// StageStarted is used, with a Normal event, when a stage of a promotion started.
 	StageStarted = "StageStarted"
+	// StageProvisioned is used, with a Normal event, when a stage of a promotion is deployed to
+	// all its clusters.
+	StageProvisioned = "StageProvisioned"
 	// PromotionCompleted is used, with a Normal event, when all the stages of a promotion
 	// completed.
 	PromotionCompleted = "PromotionCompleted"
diff --git a/lib/eventreasons/eventreasons_test.go b/lib/eventreasons/eventreasons_test.go
index f5782fe..49477e9 100644
--- a/lib/eventreasons/eventreasons_test.go
+++ b/lib/eventreasons/eventreasons_test.go
@@ -58,6 +58,7 @@ func allReasons() []string {
 		eventreasons.AccessRequestFailed,
 		eventreasons.RoleRequestFailed,
 		eventreasons.StageStarted,
+		eventreasons.StageProvisioned,
 		eventreasons.PromotionCompleted,
 		eventreasons.StageFailed,
 		eventreasons.ApprovalRequired,