diff --git a/Api.md b/Api.md
index bc45ba1..9975f6d 100644
--- a/Api.md
+++ b/Api.md
@@ -518,7 +518,7 @@ Returns HTTP 200 with an empty page on success.
 
 ## System Scopes
 
-System scopes define special scopes that have metadata attached to them such as a human-redable description, an icon, and flags indicating whether or not they are assigned to newly-created clients (`defaultScope`) or are avilable for dynamically registered clients to request (`allowDynReg`). Clients that are managed through the admin UI/API can have scopes that are not registered as a system scope.
+System scopes define special scopes that have metadata attached to them such as a human-redable description, an icon, and flags indicating whether or not they are assigned to newly-created clients (`defaultScope`) or are avilable for dynamically registered clients to request (`allowDynReg`). Clients that are managed through the admin UI/API can have scopes that are not registered as system scopes.
 
 Endpoint: **`/api/scopes`**
 
@@ -597,7 +597,7 @@ Create a new scope on the system. Message body is an `application/json` object w
 }
 ```
 
-The server will return an updated copy of the object in `application/json` format as described under **GET /api/scopes/{id}** on success.
+The server will return an updated copy of the object in `application/json` format as described under **GET /api/scopes/{id}** on success. Scope values must be unique. If a client attempts to create a new scope with an existing value, the request will be rejected.
 
 ### GET /api/scopes/{id}