diff --git a/clients/client-sesv2/src/commands/PutAccountDetailsCommand.ts b/clients/client-sesv2/src/commands/PutAccountDetailsCommand.ts
index 159cb89e4915..819d7cb3c826 100644
--- a/clients/client-sesv2/src/commands/PutAccountDetailsCommand.ts
+++ b/clients/client-sesv2/src/commands/PutAccountDetailsCommand.ts
@@ -43,7 +43,7 @@ export interface PutAccountDetailsCommandOutput extends PutAccountDetailsRespons
  *   MailType: "MARKETING" || "TRANSACTIONAL", // required
  *   WebsiteURL: "STRING_VALUE", // required
  *   ContactLanguage: "EN" || "JA",
- *   UseCaseDescription: "STRING_VALUE", // required
+ *   UseCaseDescription: "STRING_VALUE",
  *   AdditionalContactEmailAddresses: [ // AdditionalContactEmailAddresses
  *     "STRING_VALUE",
  *   ],
diff --git a/clients/client-sesv2/src/models/models_0.ts b/clients/client-sesv2/src/models/models_0.ts
index 49c75a6b84df..89f4a9babcfa 100644
--- a/clients/client-sesv2/src/models/models_0.ts
+++ b/clients/client-sesv2/src/models/models_0.ts
@@ -127,6 +127,8 @@ export interface AccountDetails {
   ContactLanguage?: ContactLanguage;
 
   /**
+   * @deprecated
+   *
    * <p>A description of the types of email that you plan to send.</p>
    * @public
    */
@@ -6864,10 +6866,12 @@ export interface PutAccountDetailsRequest {
   ContactLanguage?: ContactLanguage;
 
   /**
+   * @deprecated
+   *
    * <p>A description of the types of email that you plan to send.</p>
    * @public
    */
-  UseCaseDescription: string | undefined;
+  UseCaseDescription?: string;
 
   /**
    * <p>Additional email addresses that you would like to be notified regarding Amazon SES
diff --git a/codegen/sdk-codegen/aws-models/sesv2.json b/codegen/sdk-codegen/aws-models/sesv2.json
index 33533a543d6c..31fa58294f28 100644
--- a/codegen/sdk-codegen/aws-models/sesv2.json
+++ b/codegen/sdk-codegen/aws-models/sesv2.json
@@ -8231,8 +8231,7 @@
         "UseCaseDescription": {
           "target": "com.amazonaws.sesv2#UseCaseDescription",
           "traits": {
-            "smithy.api#documentation": "<p>A description of the types of email that you plan to send.</p>",
-            "smithy.api#required": {}
+            "smithy.api#documentation": "<p>A description of the types of email that you plan to send.</p>"
           }
         },
         "AdditionalContactEmailAddresses": {
@@ -12462,8 +12461,11 @@
     "com.amazonaws.sesv2#UseCaseDescription": {
       "type": "string",
       "traits": {
+        "smithy.api#deprecated": {
+          "message": "Use case description is optional and deprecated"
+        },
         "smithy.api#length": {
-          "min": 1,
+          "min": 0,
           "max": 5000
         },
         "smithy.api#sensitive": {}