diff --git a/plugins/woocommerce/includes/wccom-site/installation/class-wc-wccom-site-installation-manager.php b/plugins/woocommerce/includes/wccom-site/installation/class-wc-wccom-site-installation-manager.php
index 9b865b3607a..76d49822c74 100644
--- a/plugins/woocommerce/includes/wccom-site/installation/class-wc-wccom-site-installation-manager.php
+++ b/plugins/woocommerce/includes/wccom-site/installation/class-wc-wccom-site-installation-manager.php
@@ -23,6 +23,20 @@ class WC_WCCOM_Site_Installation_Manager {
 		'activate_product',
 	);
 
+	/**
+	 * The product ID.
+	 *
+	 * @var int
+	 */
+	protected $product_id;
+
+	/**
+	 * The idempotency key.
+	 *
+	 * @var string
+	 */
+	protected $idempotency_key;
+
 	/**
 	 * Constructor.
 	 *
diff --git a/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-activate-product.php b/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-activate-product.php
index e5c1f8bd49e..d9123348d0e 100644
--- a/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-activate-product.php
+++ b/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-activate-product.php
@@ -15,6 +15,13 @@ defined( 'ABSPATH' ) || exit;
  * WC_WCCOM_Site_Installation_Step_Activate_Product Class
  */
 class WC_WCCOM_Site_Installation_Step_Activate_Product implements WC_WCCOM_Site_Installation_Step {
+	/**
+	 * The current installation state.
+	 *
+	 * @var WC_WCCOM_Site_Installation_State
+	 */
+	protected $state;
+
 	/**
 	 * Constructor.
 	 *
diff --git a/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-download-product.php b/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-download-product.php
index d5ed3f69e4c..3ff0e88fbed 100644
--- a/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-download-product.php
+++ b/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-download-product.php
@@ -15,6 +15,13 @@ defined( 'ABSPATH' ) || exit;
  * WC_WCCOM_Site_Installation_Step_Download_Product class
  */
 class WC_WCCOM_Site_Installation_Step_Download_Product implements WC_WCCOM_Site_Installation_Step {
+	/**
+	 * The current installation state.
+	 *
+	 * @var WC_WCCOM_Site_Installation_State
+	 */
+	protected $state;
+
 	/**
 	 * Constructor.
 	 *
diff --git a/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-get-product-info.php b/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-get-product-info.php
index 280514632c1..8d819bca142 100644
--- a/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-get-product-info.php
+++ b/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-get-product-info.php
@@ -15,6 +15,13 @@ defined( 'ABSPATH' ) || exit;
  * WC_WCCOM_Site_Installation_Step_Get_Product_Info class
  */
 class WC_WCCOM_Site_Installation_Step_Get_Product_Info implements WC_WCCOM_Site_Installation_Step {
+	/**
+	 * The current installation state.
+	 *
+	 * @var WC_WCCOM_Site_Installation_State
+	 */
+	protected $state;
+
 	/**
 	 * Constructor.
 	 *
diff --git a/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-move-product.php b/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-move-product.php
index e6677541846..09018fb764b 100644
--- a/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-move-product.php
+++ b/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-move-product.php
@@ -12,6 +12,13 @@ defined( 'ABSPATH' ) || exit;
  * WC_WCCOM_Site_Installation_Step_Move_Product class
  */
 class WC_WCCOM_Site_Installation_Step_Move_Product implements WC_WCCOM_Site_Installation_Step {
+	/**
+	 * The current installation state.
+	 *
+	 * @var WC_WCCOM_Site_Installation_State
+	 */
+	protected $state;
+
 	/**
 	 * Constructor.
 	 *
diff --git a/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-unpack-product.php b/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-unpack-product.php
index 76881c6d83c..69bdecb4134 100644
--- a/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-unpack-product.php
+++ b/plugins/woocommerce/includes/wccom-site/installation/installation-steps/class-wc-wccom-site-installation-step-unpack-product.php
@@ -15,6 +15,13 @@ defined( 'ABSPATH' ) || exit;
  * WC_WCCOM_Site_Installation_Step_Unpack_Product class
  */
 class WC_WCCOM_Site_Installation_Step_Unpack_Product implements WC_WCCOM_Site_Installation_Step {
+	/**
+	 * The current installation state.
+	 *
+	 * @var WC_WCCOM_Site_Installation_State
+	 */
+	protected $state;
+
 	/**
 	 * Constructor.
 	 *