diff --git a/lib/recurly.d.ts b/lib/recurly.d.ts
index dffb4bb3..14f40d32 100644
--- a/lib/recurly.d.ts
+++ b/lib/recurly.d.ts
@@ -2676,6 +2676,23 @@ export declare class ExternalProduct {
 
 }
 
+export declare class ExternalProductReferenceCollection {
+  /**
+   * Will always be List.
+   */
+  object?: string | null;
+  /**
+   * Indicates there are more results on subsequent pages.
+   */
+  hasMore?: boolean | null;
+  /**
+   * Path to subsequent page of results.
+   */
+  next?: string | null;
+  data?: ExternalProductReferenceMini[] | null;
+
+}
+
 export declare class BinaryFile {
   data?: string | null;
 
@@ -4446,6 +4463,48 @@ export interface MeasuredUnitUpdate {
 
 }
 
+export interface ExternalProductCreate {
+  /**
+    * External product name.
+    */
+  name?: string | null;
+  /**
+    * Recurly plan UUID.
+    */
+  planId?: string | null;
+  /**
+    * List of external product references of the external product.
+    */
+  externalProductReferences?: ExternalProductReferenceBase[] | null;
+
+}
+
+export interface ExternalProductReferenceBase {
+  /**
+    * A code which associates the external product to a corresponding object or resource in an external platform like the Apple App Store or Google Play Store.
+    */
+  referenceCode?: string | null;
+  externalConnectionType?: string | null;
+
+}
+
+export interface ExternalProductUpdate {
+  /**
+    * Recurly plan UUID.
+    */
+  planId?: string | null;
+
+}
+
+export interface ExternalProductReferenceCreate {
+  /**
+    * A code which associates the external product to a corresponding object or resource in an external platform like the Apple App Store or Google Play Store.
+    */
+  referenceCode?: string | null;
+  externalConnectionType?: string | null;
+
+}
+
 export interface InvoiceUpdate {
   /**
     * This identifies the PO number associated with the invoice. Not editable for credit invoices.
@@ -7958,6 +8017,16 @@ endpoint to obtain only the newly generated `UniqueCouponCodes`.
    * @return {Pager<ExternalProduct>} A list of the the external_products on a site.
    */
   listExternalProducts(options?: object): Pager<ExternalProduct>;
+  /**
+   * Create an external product
+   *
+   * API docs: https://developers.recurly.com/api/v2021-02-25#operation/create_external_product
+   *
+   * 
+   * @param {ExternalProductCreate} body - The object representing the JSON request to send to the server. It should conform to the schema of {ExternalProductCreate}
+   * @return {Promise<ExternalProduct>} Returns the external product
+   */
+  createExternalProduct(body: ExternalProductCreate): Promise<ExternalProduct>;
   /**
    * Fetch an external product
    *
@@ -7968,6 +8037,76 @@ endpoint to obtain only the newly generated `UniqueCouponCodes`.
    * @return {Promise<ExternalProduct>} Settings for an external product.
    */
   getExternalProduct(externalProductId: string): Promise<ExternalProduct>;
+  /**
+   * Update an external product
+   *
+   * API docs: https://developers.recurly.com/api/v2021-02-25#operation/update_external_product
+   *
+   * 
+   * @param {string} externalProductId - External product id
+   * @param {ExternalProductUpdate} body - The object representing the JSON request to send to the server. It should conform to the schema of {ExternalProductUpdate}
+   * @return {Promise<ExternalProduct>} Settings for an external product.
+   */
+  updateExternalProduct(externalProductId: string, body: ExternalProductUpdate): Promise<ExternalProduct>;
+  /**
+   * Deactivate an external product
+   *
+   * API docs: https://developers.recurly.com/api/v2021-02-25#operation/deactivate_external_products
+   *
+   * 
+   * @param {string} externalProductId - External product id
+   * @return {Promise<ExternalProduct>} Deactivated external product.
+   */
+  deactivateExternalProducts(externalProductId: string): Promise<ExternalProduct>;
+  /**
+   * List the external product references for an external product
+   *
+   * API docs: https://developers.recurly.com/api/v2021-02-25#operation/list_external_product_external_product_references
+   *
+   * 
+   * @param {string} externalProductId - External product id
+   * @param {Object} options - Optional configurations for the request
+   * @param {Object} options.params - The optional url parameters for this request.
+   * @param {string} options.params.sort - Sort field. You *really* only want to sort by `updated_at` in ascending
+   *   order. In descending order updated records will move behind the cursor and could
+   *   prevent some records from being returned.
+   *   
+   * @return {Pager<ExternalProductReferenceCollection>} A list of the the external product references for an external product.
+   */
+  listExternalProductExternalProductReferences(externalProductId: string, options?: object): Pager<ExternalProductReferenceCollection>;
+  /**
+   * Create an external product reference on an external product
+   *
+   * API docs: https://developers.recurly.com/api/v2021-02-25#operation/create_external_product_external_product_reference
+   *
+   * 
+   * @param {string} externalProductId - External product id
+   * @param {ExternalProductReferenceCreate} body - The object representing the JSON request to send to the server. It should conform to the schema of {ExternalProductReferenceCreate}
+   * @return {Promise<ExternalProductReferenceMini>} Details for the external product reference.
+   */
+  createExternalProductExternalProductReference(externalProductId: string, body: ExternalProductReferenceCreate): Promise<ExternalProductReferenceMini>;
+  /**
+   * Fetch an external product reference
+   *
+   * API docs: https://developers.recurly.com/api/v2021-02-25#operation/get_external_product_external_product_reference
+   *
+   * 
+   * @param {string} externalProductId - External product id
+   * @param {string} externalProductReferenceId - External product reference ID, e.g. `d39iun2fw1v4`.
+   * @return {Promise<ExternalProductReferenceMini>} Details for an external product reference.
+   */
+  getExternalProductExternalProductReference(externalProductId: string, externalProductReferenceId: string): Promise<ExternalProductReferenceMini>;
+  /**
+   * Deactivate an external product reference
+   *
+   * API docs: https://developers.recurly.com/api/v2021-02-25#operation/deactivate_external_product_external_product_reference
+   *
+   * 
+   * @param {string} externalProductId - External product id
+   * @param {string} externalProductReferenceId - External product reference ID, e.g. `d39iun2fw1v4`.
+   * @return {Promise<ExternalProductReferenceMini>} Details for an external product reference.
+   */
+  deactivateExternalProductExternalProductReference(externalProductId: string, externalProductReferenceId: string): Promise<ExternalProductReferenceMini>;
   /**
    * List a site's external subscriptions
    *
diff --git a/lib/recurly/Client.js b/lib/recurly/Client.js
index 082adc32..8e3fd45d 100644
--- a/lib/recurly/Client.js
+++ b/lib/recurly/Client.js
@@ -2350,6 +2350,21 @@ endpoint to obtain only the newly generated `UniqueCouponCodes`.
     return new Pager(this, path, options)
   }
 
+  /**
+   * Create an external product
+   *
+   * API docs: {@link https://developers.recurly.com/api/v2021-02-25#operation/create_external_product}
+   *
+   *
+   * @param {ExternalProductCreate} body - The object representing the JSON request to send to the server. It should conform to the schema of {ExternalProductCreate}
+   * @return {Promise<ExternalProduct>} Returns the external product
+   */
+  async createExternalProduct (body, options = {}) {
+    let path = '/external_products'
+    path = this._interpolatePath(path)
+    return this._makeRequest('POST', path, body, options)
+  }
+
   /**
    * Fetch an external product
    *
@@ -2365,6 +2380,106 @@ endpoint to obtain only the newly generated `UniqueCouponCodes`.
     return this._makeRequest('GET', path, null, options)
   }
 
+  /**
+   * Update an external product
+   *
+   * API docs: {@link https://developers.recurly.com/api/v2021-02-25#operation/update_external_product}
+   *
+   *
+   * @param {string} externalProductId - External product id
+   * @param {ExternalProductUpdate} body - The object representing the JSON request to send to the server. It should conform to the schema of {ExternalProductUpdate}
+   * @return {Promise<ExternalProduct>} Settings for an external product.
+   */
+  async updateExternalProduct (externalProductId, body, options = {}) {
+    let path = '/external_products/{external_product_id}'
+    path = this._interpolatePath(path, { 'external_product_id': externalProductId })
+    return this._makeRequest('PUT', path, body, options)
+  }
+
+  /**
+   * Deactivate an external product
+   *
+   * API docs: {@link https://developers.recurly.com/api/v2021-02-25#operation/deactivate_external_products}
+   *
+   *
+   * @param {string} externalProductId - External product id
+   * @return {Promise<ExternalProduct>} Deactivated external product.
+   */
+  async deactivateExternalProducts (externalProductId, options = {}) {
+    let path = '/external_products/{external_product_id}'
+    path = this._interpolatePath(path, { 'external_product_id': externalProductId })
+    return this._makeRequest('DELETE', path, null, options)
+  }
+
+  /**
+   * List the external product references for an external product
+   *
+   * API docs: {@link https://developers.recurly.com/api/v2021-02-25#operation/list_external_product_external_product_references}
+   *
+   *
+   * @param {string} externalProductId - External product id
+   * @param {Object} options - Optional configurations for the request
+   * @param {Object} options.params - The optional url parameters for this request.
+   * @param {string} options.params.sort - Sort field. You *really* only want to sort by `updated_at` in ascending
+   *   order. In descending order updated records will move behind the cursor and could
+   *   prevent some records from being returned.
+   *
+   * @return {Pager<ExternalProductReferenceCollection>} A list of the the external product references for an external product.
+   */
+  listExternalProductExternalProductReferences (externalProductId, options = {}) {
+    let path = '/external_products/{external_product_id}/external_product_references'
+    path = this._interpolatePath(path, { 'external_product_id': externalProductId })
+    return new Pager(this, path, options)
+  }
+
+  /**
+   * Create an external product reference on an external product
+   *
+   * API docs: {@link https://developers.recurly.com/api/v2021-02-25#operation/create_external_product_external_product_reference}
+   *
+   *
+   * @param {string} externalProductId - External product id
+   * @param {ExternalProductReferenceCreate} body - The object representing the JSON request to send to the server. It should conform to the schema of {ExternalProductReferenceCreate}
+   * @return {Promise<ExternalProductReferenceMini>} Details for the external product reference.
+   */
+  async createExternalProductExternalProductReference (externalProductId, body, options = {}) {
+    let path = '/external_products/{external_product_id}/external_product_references'
+    path = this._interpolatePath(path, { 'external_product_id': externalProductId })
+    return this._makeRequest('POST', path, body, options)
+  }
+
+  /**
+   * Fetch an external product reference
+   *
+   * API docs: {@link https://developers.recurly.com/api/v2021-02-25#operation/get_external_product_external_product_reference}
+   *
+   *
+   * @param {string} externalProductId - External product id
+   * @param {string} externalProductReferenceId - External product reference ID, e.g. `d39iun2fw1v4`.
+   * @return {Promise<ExternalProductReferenceMini>} Details for an external product reference.
+   */
+  async getExternalProductExternalProductReference (externalProductId, externalProductReferenceId, options = {}) {
+    let path = '/external_products/{external_product_id}/external_product_references/{external_product_reference_id}'
+    path = this._interpolatePath(path, { 'external_product_id': externalProductId, 'external_product_reference_id': externalProductReferenceId })
+    return this._makeRequest('GET', path, null, options)
+  }
+
+  /**
+   * Deactivate an external product reference
+   *
+   * API docs: {@link https://developers.recurly.com/api/v2021-02-25#operation/deactivate_external_product_external_product_reference}
+   *
+   *
+   * @param {string} externalProductId - External product id
+   * @param {string} externalProductReferenceId - External product reference ID, e.g. `d39iun2fw1v4`.
+   * @return {Promise<ExternalProductReferenceMini>} Details for an external product reference.
+   */
+  async deactivateExternalProductExternalProductReference (externalProductId, externalProductReferenceId, options = {}) {
+    let path = '/external_products/{external_product_id}/external_product_references/{external_product_reference_id}'
+    path = this._interpolatePath(path, { 'external_product_id': externalProductId, 'external_product_reference_id': externalProductReferenceId })
+    return this._makeRequest('DELETE', path, null, options)
+  }
+
   /**
    * List a site's external subscriptions
    *
diff --git a/lib/recurly/resources/ExternalProductReferenceCollection.js b/lib/recurly/resources/ExternalProductReferenceCollection.js
new file mode 100644
index 00000000..25b5aa7d
--- /dev/null
+++ b/lib/recurly/resources/ExternalProductReferenceCollection.js
@@ -0,0 +1,31 @@
+/* istanbul ignore file */
+/**
+ * This file is automatically created by Recurly's OpenAPI generation process
+ * and thus any edits you make by hand will be lost. If you wish to make a
+ * change to this file, please create a Github issue explaining the changes you
+ * need and we will usher them to the appropriate places.
+ */
+'use strict'
+
+const Resource = require('../Resource')
+
+/**
+ * ExternalProductReferenceCollection
+ * @typedef {Object} ExternalProductReferenceCollection
+ * @prop {Array.<ExternalProductReferenceMini>} data
+ * @prop {boolean} hasMore - Indicates there are more results on subsequent pages.
+ * @prop {string} next - Path to subsequent page of results.
+ * @prop {string} object - Will always be List.
+ */
+class ExternalProductReferenceCollection extends Resource {
+  static getSchema () {
+    return {
+      data: ['ExternalProductReferenceMini'],
+      hasMore: Boolean,
+      next: String,
+      object: String
+    }
+  }
+}
+
+module.exports = ExternalProductReferenceCollection
diff --git a/lib/recurly/resources/index.js b/lib/recurly/resources/index.js
index b16ff868..6b5d206d 100644
--- a/lib/recurly/resources/index.js
+++ b/lib/recurly/resources/index.js
@@ -70,6 +70,7 @@ module.exports.Item = require('./Item')
 module.exports.Pricing = require('./Pricing')
 module.exports.MeasuredUnit = require('./MeasuredUnit')
 module.exports.ExternalProduct = require('./ExternalProduct')
+module.exports.ExternalProductReferenceCollection = require('./ExternalProductReferenceCollection')
 module.exports.BinaryFile = require('./BinaryFile')
 module.exports.Plan = require('./Plan')
 module.exports.PlanRampInterval = require('./PlanRampInterval')
diff --git a/openapi/api.yaml b/openapi/api.yaml
index 2e416067..d66ed15f 100644
--- a/openapi/api.yaml
+++ b/openapi/api.yaml
@@ -206,6 +206,7 @@ x-tagGroups:
   - external_invoices
   - external_products
   - external_accounts
+  - external_product_references
 - name: Products and Promotions
   tags:
   - item
@@ -360,6 +361,10 @@ tags:
   description: A product from an external resource that is not managed by the Recurly
     platform and instead is managed by third-party platforms like Apple App Store
     and Google Play Store.
+- name: external_product_references
+  x-displayName: External Product Reference
+  description: Associates an external product to a corresponding resource on an external
+    platform like the Apple App Store or Google Play Store.
 - name: gift_cards
   x-displayName: Gift Cards
   description: Add gift card purchases to your checkout and allow gift card recipients
@@ -7745,6 +7750,43 @@ paths:
               schema:
                 "$ref": "#/components/schemas/Error"
       x-code-samples: []
+    post:
+      tags:
+      - external_products
+      operationId: create_external_product
+      summary: Create an external product
+      requestBody:
+        content:
+          application/json:
+            schema:
+              "$ref": "#/components/schemas/ExternalProductCreate"
+        required: true
+      responses:
+        '201':
+          description: Returns the external product
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/ExternalProduct"
+        '400':
+          description: Bad request; perhaps missing or invalid parameters.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+        '404':
+          description: External product cannot be created for the specified reason.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+        default:
+          description: Unexpected error.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+      x-code-samples: []
   "/external_products/{external_product_id}":
     parameters:
     - "$ref": "#/components/parameters/external_product_id"
@@ -7773,6 +7815,181 @@ paths:
               schema:
                 "$ref": "#/components/schemas/Error"
       x-code-samples: []
+    put:
+      tags:
+      - external_products
+      operationId: update_external_product
+      summary: Update an external product
+      requestBody:
+        content:
+          application/json:
+            schema:
+              "$ref": "#/components/schemas/ExternalProductUpdate"
+        required: true
+      responses:
+        '200':
+          description: Settings for an external product.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/ExternalProduct"
+        '404':
+          description: Bad request; perhaps missing or invalid parameters.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+        default:
+          description: Unexpected error.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+      x-code-samples: []
+    delete:
+      tags:
+      - external_products
+      operationId: deactivate_external_products
+      summary: Deactivate an external product
+      description: Deactivate an external product.
+      responses:
+        '200':
+          description: Deactivated external product.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/ExternalProduct"
+        '404':
+          description: Bad request; perhaps missing or invalid parameters.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+        default:
+          description: Unexpected error.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+      x-code-samples: []
+  "/external_products/{external_product_id}/external_product_references":
+    parameters:
+    - "$ref": "#/components/parameters/external_product_id"
+    get:
+      tags:
+      - external_product_references
+      operationId: list_external_product_external_product_references
+      summary: List the external product references for an external product
+      description: See the [Pagination Guide](/developers/guides/pagination.html)
+        to learn how to use pagination in the API and Client Libraries.
+      parameters:
+      - "$ref": "#/components/parameters/sort_dates"
+      responses:
+        '200':
+          description: A list of the the external product references for an external
+            product.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/ExternalProductReferenceCollection"
+        '404':
+          description: Incorrect site or external product ID.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+        default:
+          description: Unexpected error.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+      x-code-samples: []
+    post:
+      tags:
+      - external_product_references
+      operationId: create_external_product_external_product_reference
+      summary: Create an external product reference on an external product
+      requestBody:
+        content:
+          application/json:
+            schema:
+              "$ref": "#/components/schemas/ExternalProductReferenceCreate"
+        required: true
+      responses:
+        '201':
+          description: Details for the external product reference.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/ExternalProductReferenceMini"
+        '404':
+          description: Incorrect site.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+        default:
+          description: Unexpected error.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+      x-code-samples: []
+  "/external_products/{external_product_id}/external_product_references/{external_product_reference_id}":
+    parameters:
+    - "$ref": "#/components/parameters/external_product_id"
+    - "$ref": "#/components/parameters/external_product_reference_id"
+    get:
+      tags:
+      - external_product_references
+      operationId: get_external_product_external_product_reference
+      summary: Fetch an external product reference
+      responses:
+        '200':
+          description: Details for an external product reference.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/ExternalProductReferenceMini"
+        '404':
+          description: Incorrect site or external product ID.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+        default:
+          description: Unexpected error.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+      x-code-samples: []
+    delete:
+      tags:
+      - external_product_references
+      operationId: deactivate_external_product_external_product_reference
+      summary: Deactivate an external product reference
+      responses:
+        '200':
+          description: Details for an external product reference.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/ExternalProductReferenceMini"
+        '404':
+          description: Incorrect site or external product reference ID.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+        default:
+          description: Unexpected error.
+          content:
+            application/json:
+              schema:
+                "$ref": "#/components/schemas/Error"
+      x-code-samples: []
   "/external_subscriptions":
     get:
       tags:
@@ -16014,6 +16231,13 @@ components:
       required: true
       schema:
         type: string
+    external_product_reference_id:
+      name: external_product_reference_id
+      in: path
+      description: External product reference ID, e.g. `d39iun2fw1v4`.
+      required: true
+      schema:
+        type: string
     external_subscription_id:
       name: external_subscription_id
       in: path
@@ -23220,6 +23444,73 @@ components:
           type: array
           items:
             "$ref": "#/components/schemas/ExternalProduct"
+    ExternalProductCreate:
+      type: object
+      properties:
+        name:
+          type: string
+          description: External product name.
+        plan_id:
+          type: string
+          description: Recurly plan UUID.
+        external_product_references:
+          type: array
+          title: External Product References
+          description: List of external product references of the external product.
+          items:
+            "$ref": "#/components/schemas/ExternalProductReferenceBase"
+      required:
+      - name
+    ExternalProductUpdate:
+      type: object
+      properties:
+        plan_id:
+          type: string
+          description: Recurly plan UUID.
+      required:
+      - plan_id
+    ExternalProductReferenceBase:
+      type: object
+      properties:
+        reference_code:
+          type: string
+          description: A code which associates the external product to a corresponding
+            object or resource in an external platform like the Apple App Store or
+            Google Play Store.
+          maxLength: 255
+        external_connection_type:
+          "$ref": "#/components/schemas/ExternalProductReferenceConnectionTypeEnum"
+    ExternalProductReferenceCollection:
+      type: object
+      properties:
+        object:
+          type: string
+          title: Object type
+          description: Will always be List.
+        has_more:
+          type: boolean
+          description: Indicates there are more results on subsequent pages.
+        next:
+          type: string
+          description: Path to subsequent page of results.
+        data:
+          type: array
+          items:
+            "$ref": "#/components/schemas/ExternalProductReferenceMini"
+    ExternalProductReferenceCreate:
+      allOf:
+      - "$ref": "#/components/schemas/ExternalProductReferenceBase"
+      required:
+      - reference_code
+      - external_connection_type
+    ExternalProductReferenceUpdate:
+      allOf:
+      - "$ref": "#/components/schemas/ExternalProductReferenceBase"
+    ExternalProductReferenceConnectionTypeEnum:
+      type: string
+      enum:
+      - apple_app_store
+      - google_play_store
     ExternalAccountList:
       type: object
       properties:
diff --git a/package-lock.json b/package-lock.json
index 9325b660..4a693fb2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "recurly",
-  "version": "4.35.0",
+  "version": "4.36.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "recurly",
-      "version": "4.35.0",
+      "version": "4.36.0",
       "license": "MIT",
       "devDependencies": {
         "@types/node": "^12.11.1",