diff --git a/schemas/2021-06-01-preview/Microsoft.KeyVault.json b/schemas/2021-06-01-preview/Microsoft.KeyVault.json
index d107a5b820..94b2482df0 100644
--- a/schemas/2021-06-01-preview/Microsoft.KeyVault.json
+++ b/schemas/2021-06-01-preview/Microsoft.KeyVault.json
@@ -1631,11 +1631,11 @@
       "properties": {
         "timeAfterCreate": {
           "type": "string",
-          "description": "The time duration after key creation to rotate the key. It should be in ISO8601 format. Eg: 'P90D', 'P1Y'."
+          "description": "The time duration after key creation to rotate the key. It only applies to rotate. It will be in ISO 8601 duration format. Eg: 'P90D', 'P1Y'."
         },
         "timeBeforeExpiry": {
           "type": "string",
-          "description": "The time duration before key expiring to rotate the key. It should be in ISO8601 format. Eg: 'P90D', 'P1Y'."
+          "description": "The time duration before key expiring to rotate or notify. It will be in ISO 8601 duration format. Eg: 'P90D', 'P1Y'."
         }
       }
     },