diff --git a/lib/AvaTaxClient.ts b/lib/AvaTaxClient.ts
index 0b4a95c..ac7f35b 100644
--- a/lib/AvaTaxClient.ts
+++ b/lib/AvaTaxClient.ts
@@ -10,7 +10,7 @@
  * @author     Sachin Baijal <sachin.baijal@avalara.com>
  * @copyright  2004-2018 Avalara, Inc.
  * @license    https://www.apache.org/licenses/LICENSE-2.0
- * @version    24.11.2
+ * @version    24.12.0
  * @link       https://github.com/avadev/AvaTax-REST-V2-JS-SDK
  */
 
@@ -50,7 +50,7 @@ export default class AvaTaxClient {
   public auth: string;
   public customHttpAgent: https.Agent;
   public enableStrictTypeConversion: boolean;
-  private apiVersion: string = '24.11.2';
+  private apiVersion: string = '24.12.0';
   private logger: Logger;
   /**
    * Construct a new AvaTaxClient 
@@ -8056,16 +8056,20 @@ export default class AvaTaxClient {
    * 
      * @param {number} id The unique ID number of this funding request
      * @param {Enums.POABusinessUnit} businessUnit The company's business unit (See POABusinessUnit::* for a list of allowable values)
-     * @param {Enums.POASubscriptionType} subscriptionType The company's subscription type (See POASubscriptionType::* for a list of allowable values)
+     * @param {Enums.POASubscriptionType} subscriptionType The company's subscription type (See POASubscriptionType::* for a list of allowable values)
+     * @param {string} currency Currency
+     * @param {string} agreementType Agreement Type
    * @return {Models.FundingStatusModel}
    */
   
-  activateFundingRequest({ id, businessUnit, subscriptionType }: { id: number, businessUnit?: Enums.POABusinessUnit, subscriptionType?: Enums.POASubscriptionType }): Promise<Models.FundingStatusModel> {
+  activateFundingRequest({ id, businessUnit, subscriptionType, currency, agreementType }: { id: number, businessUnit?: Enums.POABusinessUnit, subscriptionType?: Enums.POASubscriptionType, currency?: string, agreementType?: string }): Promise<Models.FundingStatusModel> {
     var path = this.buildUrl({
       url: `/api/v2/fundingrequests/${id}/widget`,
       parameters: {
         businessUnit: businessUnit,
-        subscriptionType: subscriptionType
+        subscriptionType: subscriptionType,
+        currency: currency,
+        agreementType: agreementType
       }
     });
 	 var strClientId =
diff --git a/lib/enums/ErrorCodeId.ts b/lib/enums/ErrorCodeId.ts
index 4924a7b..0591c5b 100644
--- a/lib/enums/ErrorCodeId.ts
+++ b/lib/enums/ErrorCodeId.ts
@@ -326,6 +326,7 @@ import { JsonConverter, JsonCustomConvert } from "json2typescript";
         TooManyItemIdsInTaxCodeClassificationRequest = 1742,
         InvalidProductCodeLength = 1743,
         InvalidProductCodeFormat = 1744,
+        InvalidCountryAssignment = 1745,
         UnsupportedFileFormat = 1800,
         UnsupportedOutputFileType = 1801,
         TaxProfileNotProvided = 1900,
@@ -407,6 +408,8 @@ import { JsonConverter, JsonCustomConvert } from "json2typescript";
         UnsupportedPatchOperationError = 3006,
         SystemCodeAndCountryCodeMismatch = 3007,
         DuplicateSystemAndCountryForItem = 3008,
+        InvalidHsCodeClassificationStatusOverride = 3009,
+        InvalidField = 3010,
         NotFound = 4001,
         Unexpected = 4002,
         NoHostFound = 4003,
diff --git a/lib/models/CertificateModel.ts b/lib/models/CertificateModel.ts
index fa18384..3b41825 100644
--- a/lib/models/CertificateModel.ts
+++ b/lib/models/CertificateModel.ts
@@ -59,8 +59,8 @@ log onto the administrative website for the product you purchased.
      * @type {Date}
      * @memberof CertificateModel
      */
-   @JsonProperty("expirationDate", DateConverter)
-   expirationDate: Date = undefined;
+   @JsonProperty("expirationDate", DateConverter, true)
+   expirationDate?: Date | undefined = undefined;
     /**
      * @type {string}
      * @memberof CertificateModel
diff --git a/lib/models/FilingReturnModel.ts b/lib/models/FilingReturnModel.ts
index 8cf1167..46d25f0 100644
--- a/lib/models/FilingReturnModel.ts
+++ b/lib/models/FilingReturnModel.ts
@@ -129,6 +129,12 @@ import { DateConverter } from "../utils/dateConverter";
      * @type {string}
      * @memberof FilingReturnModel
      */
+   @JsonProperty("taxFormCode", String, true)
+   taxFormCode?: string | undefined = undefined;
+    /**
+     * @type {string}
+     * @memberof FilingReturnModel
+     */
    @JsonProperty("description", String, true)
    description?: string | undefined = undefined;
     /**
diff --git a/lib/models/FilingReturnModelBasic.ts b/lib/models/FilingReturnModelBasic.ts
index 603b86f..f5e45db 100644
--- a/lib/models/FilingReturnModelBasic.ts
+++ b/lib/models/FilingReturnModelBasic.ts
@@ -137,6 +137,12 @@ import { DateConverter } from "../utils/dateConverter";
      * @type {string}
      * @memberof FilingReturnModelBasic
      */
+   @JsonProperty("taxFormCode", String, true)
+   taxFormCode?: string | undefined = undefined;
+    /**
+     * @type {string}
+     * @memberof FilingReturnModelBasic
+     */
    @JsonProperty("description", String, true)
    description?: string | undefined = undefined;
     /**
diff --git a/lib/models/MultiTaxFilingReturnModel.ts b/lib/models/MultiTaxFilingReturnModel.ts
index 63183bf..14776fd 100644
--- a/lib/models/MultiTaxFilingReturnModel.ts
+++ b/lib/models/MultiTaxFilingReturnModel.ts
@@ -83,6 +83,12 @@ import { DateConverter } from "../utils/dateConverter";
      * @type {string}
      * @memberof MultiTaxFilingReturnModel
      */
+   @JsonProperty("taxFormCode", String, true)
+   taxFormCode?: string | undefined = undefined;
+    /**
+     * @type {string}
+     * @memberof MultiTaxFilingReturnModel
+     */
    @JsonProperty("description", String, true)
    description?: string | undefined = undefined;
     /**
diff --git a/lib/models/NoticeModel.ts b/lib/models/NoticeModel.ts
index 0210b1e..86db364 100644
--- a/lib/models/NoticeModel.ts
+++ b/lib/models/NoticeModel.ts
@@ -82,14 +82,14 @@ they are called "Notices".
      * @type {string}
      * @memberof NoticeModel
      */
-   @JsonProperty("country", String, true)
-   country?: string | undefined = undefined;
+   @JsonProperty("country", String)
+   country: string = undefined;
     /**
      * @type {string}
      * @memberof NoticeModel
      */
-   @JsonProperty("region", String, true)
-   region?: string | undefined = undefined;
+   @JsonProperty("region", String)
+   region: string = undefined;
     /**
      * @type {number}
      * @memberof NoticeModel
@@ -136,8 +136,8 @@ they are called "Notices".
      * @type {string}
      * @memberof NoticeModel
      */
-   @JsonProperty("taxPeriod", String, true)
-   taxPeriod?: string | undefined = undefined;
+   @JsonProperty("taxPeriod", String)
+   taxPeriod: string = undefined;
     /**
      * @type {number}
      * @memberof NoticeModel
@@ -256,8 +256,8 @@ they are called "Notices".
      * @type {string}
      * @memberof NoticeModel
      */
-   @JsonProperty("taxFormCode", String, true)
-   taxFormCode?: string | undefined = undefined;
+   @JsonProperty("taxFormCode", String)
+   taxFormCode: string = undefined;
     /**
      * @type {string}
      * @memberof NoticeModel
diff --git a/package.json b/package.json
index 17dff8f..1b49793 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "avatax",
-  "version": "24.11.2",
+  "version": "24.12.0",
   "description": "AvaTax v2 SDK for languages using JavaScript",
   "main": "index.js",
   "types": "index.d.ts",