diff --git a/includes/admin/class-wc-amazon-payments-advanced-order-admin.php b/includes/admin/class-wc-amazon-payments-advanced-order-admin.php
index 49411c52..d7c02942 100644
--- a/includes/admin/class-wc-amazon-payments-advanced-order-admin.php
+++ b/includes/admin/class-wc-amazon-payments-advanced-order-admin.php
@@ -42,9 +42,13 @@ public function order_actions() {
 	 * Non AJAX handler that performs order actions.
 	 */
 	public function order_actions_non_ajax() {
-		$screen_to_check = WC_Amazon_Payments_Advanced_Utils::get_edit_order_screen_id();
+		$allowed_screens = array(
+			WC_Amazon_Payments_Advanced_Utils::get_edit_order_screen_id(),
+			WC_Amazon_Payments_Advanced_Utils::get_edit_subscription_screen_id(),
+		);
 
-		if ( get_current_screen()->id !== $screen_to_check ) {
+		$current_screen = get_current_screen();
+		if ( ! $current_screen || ! in_array( $current_screen->id, $allowed_screens, true ) ) {
 			return;
 		}
 
@@ -136,9 +140,12 @@ public function meta_box( $screen, $order ) {
 			return;
 		}
 
-		$screen = WC_Amazon_Payments_Advanced_Utils::get_edit_order_screen_id();
+		$default_screens = array(
+			WC_Amazon_Payments_Advanced_Utils::get_edit_order_screen_id(),
+			WC_Amazon_Payments_Advanced_Utils::get_edit_subscription_screen_id(),
+		);
 
-		$post_types = apply_filters( 'woocommerce_amazon_pa_admin_meta_box_post_types', array( $screen ) );
+		$post_types = apply_filters( 'woocommerce_amazon_pa_admin_meta_box_post_types', $default_screens );
 
 		foreach ( $post_types as $post_type ) {
 			add_meta_box(
diff --git a/includes/class-wc-amazon-payments-advanced-utils.php b/includes/class-wc-amazon-payments-advanced-utils.php
index 287e65e2..519eca3d 100644
--- a/includes/class-wc-amazon-payments-advanced-utils.php
+++ b/includes/class-wc-amazon-payments-advanced-utils.php
@@ -27,6 +27,24 @@ public static function get_edit_order_screen_id() {
 		: 'shop_order';
 	}
 
+	/**
+	 * Returns the edit subscription's screen id.
+	 *
+	 * Takes into consideration if HPOS is enabled or not.
+	 *
+	 * @return string
+	 */
+	public static function get_edit_subscription_screen_id() {
+		// Fall back to classic post type screen id.
+		if ( ! function_exists( 'wc_get_container' ) || ! class_exists( 'Automattic\WooCommerce\Internal\DataStores\Orders\CustomOrdersTableController' ) ) {
+			return 'shop_subscription';
+		}
+
+		// HPOS screen id uses wc-orders page with order type suffix.
+		return wc_get_container()->get( \Automattic\WooCommerce\Internal\DataStores\Orders\CustomOrdersTableController::class )->custom_orders_table_usage_is_enabled()
+			? wc_get_page_screen_id( 'shop-subscription' )
+			: 'shop_subscription';
+	}
 
 	/**
 	 * Get non required fields.