public static function ensure_addon_updaters_initialized( $_transient_data ) {
			if ( ! is_multisite() ) {
				return $_transient_data;
			}

			// Map of plugin slugs to their details
			$addon_plugins = array(
				'make-list-widget'                 => array(
					'option_name' => 'make_list_widget_settings',
					'item_id'     => 607,
					'class_name'  => 'Make_List_Addon',
				),
				'taxonomy-filters-widget'          => array(
					'option_name' => 'invp_filters_widget_settings',
					'item_id'     => 597,
					'class_name'  => 'Taxonomy_Filters_Addon',
				),
				'taxonomy-drop-down-search-widget' => array(
					'option_name' => 'invp_drop_down_widget_settings',
					'item_id'     => 599,
					'class_name'  => 'Dropdown_Search_Addon',
				),
			);

			// Check if updaters are already initialized
			global $edd_plugin_data;
			if ( ! isset( $edd_plugin_data ) ) {
				$edd_plugin_data = array();
			}

			// Get all installed plugins
			$all_plugins = get_plugins();

			foreach ( $addon_plugins as $slug => $plugin_info ) {
				// Find the plugin file
				$plugin_file = null;
				foreach ( $all_plugins as $file => $plugin_data ) {
					if ( strpos( $file, $slug ) !== false ) {
						$plugin_file = $file;
						break;
					}
				}

				if ( ! $plugin_file ) {
					continue;
				}

				// Check if updater is already initialized
				if ( isset( $edd_plugin_data[ $slug ] ) ) {
					continue;
				}

				// Try to get license key from any site, and remember which site it came from
				$license_key      = '';
				$license_site_url = '';
				$sites            = get_sites( array( 'number' => 100 ) );
				foreach ( $sites as $site ) {
					switch_to_blog( $site->blog_id );
					$options = get_option( $plugin_info['option_name'] );
					if ( ! empty( $options['license_key'] ) ) {
						$license_key = $options['license_key'];
						// Use the site URL where the license key was found
						// This ensures the license validation matches the registered site
						$license_site_url = home_url();
						restore_current_blog();
						break;
					}
					restore_current_blog();
				}

				// If we found a license key, initialize the updater
				if ( ! empty( $license_key ) && class_exists( 'Inventory_Presser_Addon_Updater' ) ) {
					// Get plugin version from file
					$plugin_path = WP_PLUGIN_DIR . '/' . $plugin_file;
					if ( file_exists( $plugin_path ) ) {
						$plugin_data = get_file_data( $plugin_path, array( 'Version' => 'Version' ) );
						$version     = ! empty( $plugin_data['Version'] ) ? $plugin_data['Version'] : '1.0.0';

						// Use the site URL where the license key was found, or fall back to network URL
						$site_url = ! empty( $license_site_url ) ? $license_site_url : network_home_url();

						$updater = new Inventory_Presser_Addon_Updater(
							'https://inventorypresser.com',
							$plugin_file,
							array(
								'version' => $version,
								'license' => $license_key,
								'item_id' => $plugin_info['item_id'],
								'author'  => 'Corey Salzano',
								'url'     => $site_url,
								'beta'    => false,
							)
						);
					}
				}
			}

			return $_transient_data;
		}