diff --git a/source/administration/monitoring/bucket-notifications.rst b/source/administration/monitoring/bucket-notifications.rst
index 592e55d5..2647c45f 100644
--- a/source/administration/monitoring/bucket-notifications.rst
+++ b/source/administration/monitoring/bucket-notifications.rst
@@ -189,8 +189,13 @@ Scanner Events
 MinIO supports triggering notifications on the following S3 scanner transition events:
 
 .. data:: s3:Scanner:ManyVersions
+
+   Scanner finds objects with more than 1,000 versions.
+
 .. data:: s3:Scanner:BigPrefix
 
+   Scanner finds prefixes with more than 50,000 sub-folders.
+
 Global Events
 ~~~~~~~~~~~~~