diff --git a/clients/client-organizations/src/models/models_0.ts b/clients/client-organizations/src/models/models_0.ts
index b424bae283f3..5c2a84cd777f 100644
--- a/clients/client-organizations/src/models/models_0.ts
+++ b/clients/client-organizations/src/models/models_0.ts
@@ -2058,7 +2058,7 @@ export interface CreateOrganizationalUnitRequest {
 export interface OrganizationalUnit {
   /**
    * @public
-   * <p>The unique identifier (ID) associated with this OU.</p>
+   * <p>The unique identifier (ID) associated with this OU. The ID is unique to the organization only.</p>
    *          <p>The <a href="http://wikipedia.org/wiki/regex">regex pattern</a> for an organizational unit ID string requires
    *     "ou-" followed by from 4 to 32 lowercase letters or digits (the ID of the root that contains the
    *     OU). This string is followed by a second "-" dash and from 8 to 32 additional lowercase letters
@@ -3008,7 +3008,7 @@ export interface DisablePolicyTypeRequest {
 export interface Root {
   /**
    * @public
-   * <p>The unique identifier (ID) for the root.</p>
+   * <p>The unique identifier (ID) for the root. The ID is unique to the organization only.</p>
    *          <p>The <a href="http://wikipedia.org/wiki/regex">regex pattern</a> for a root ID string requires "r-" followed by
    *     from 4 to 32 lowercase letters or digits.</p>
    */
diff --git a/codegen/sdk-codegen/aws-models/organizations.json b/codegen/sdk-codegen/aws-models/organizations.json
index 293f5eaaf5ba..9ef5f97fc4ba 100644
--- a/codegen/sdk-codegen/aws-models/organizations.json
+++ b/codegen/sdk-codegen/aws-models/organizations.json
@@ -7475,7 +7475,7 @@
         "Id": {
           "target": "com.amazonaws.organizations#OrganizationalUnitId",
           "traits": {
-            "smithy.api#documentation": "<p>The unique identifier (ID) associated with this OU.</p>\n         <p>The <a href=\"http://wikipedia.org/wiki/regex\">regex pattern</a> for an organizational unit ID string requires \n    \"ou-\" followed by from 4 to 32 lowercase letters or digits (the ID of the root that contains the \n    OU). This string is followed by a second \"-\" dash and from 8 to 32 additional lowercase letters \n    or digits.</p>"
+            "smithy.api#documentation": "<p>The unique identifier (ID) associated with this OU. The ID is unique to the organization only.</p>\n         <p>The <a href=\"http://wikipedia.org/wiki/regex\">regex pattern</a> for an organizational unit ID string requires \n    \"ou-\" followed by from 4 to 32 lowercase letters or digits (the ID of the root that contains the \n    OU). This string is followed by a second \"-\" dash and from 8 to 32 additional lowercase letters \n    or digits.</p>"
           }
         },
         "Arn": {
@@ -7667,8 +7667,7 @@
       "type": "string",
       "traits": {
         "smithy.api#length": {
-          "min": 1,
-          "max": 1000000
+          "min": 1
         },
         "smithy.api#pattern": "^[\\s\\S]*$"
       }
@@ -8251,7 +8250,7 @@
         "Id": {
           "target": "com.amazonaws.organizations#RootId",
           "traits": {
-            "smithy.api#documentation": "<p>The unique identifier (ID) for the root.</p>\n         <p>The <a href=\"http://wikipedia.org/wiki/regex\">regex pattern</a> for a root ID string requires \"r-\" followed by \n    from 4 to 32 lowercase letters or digits.</p>"
+            "smithy.api#documentation": "<p>The unique identifier (ID) for the root. The ID is unique to the organization only.</p>\n         <p>The <a href=\"http://wikipedia.org/wiki/regex\">regex pattern</a> for a root ID string requires \"r-\" followed by \n    from 4 to 32 lowercase letters or digits.</p>"
           }
         },
         "Arn": {