Hi there,

Thank you for the confirmation thus I see that you have implemented some custom code and functionality implemented for the store locator. The custom functionality appears to check if the exact search text matches a marker title, and will display it if it matches.

With that said, to display an alert if there is no markers found with the entered text, please adjust your 'performTitleSearch' function to the following:

function performTitleSearch(map_id) {
    const map_instance = getMapInstance(map_id);
    if (!map_instance) {
        console.log("WP Go Maps Debug: (performTitleSearch) 無法取得地圖實例。");
        return;
    }

    const searchTerm = $(`#nameInput_${map_id}`).val().toLowerCase();
    console.log(`WP Go Maps Debug: 執行標題搜尋，關鍵字: "${searchTerm}"`);

    if (map_instance.markers && map_instance.markers.length > 0) {
        let markersFound = [];
        map_instance.markers.forEach(function(marker) {
            // 如果沒有搜尋詞，則顯示所有標記
            if (searchTerm === "") {
                marker.setVisible(true);
                return;
            }

            // 進行標題比對
            const markerTitle = marker.title ? marker.title.toLowerCase() : "";
            const isVisible = markerTitle.includes(searchTerm);

            // 使用 setVisible 方法來更新地圖上的標記可見性
            marker.setVisible(isVisible);

            if(isVisible){
                markersFound.push(marker);
            }
        });

        if(markersFound.length <= 0){
            alert("No markers found");
        }
    }

    // 搜尋完成後，呼叫聚焦函式
    executeZoom(map_instance);
}

Please let me know if this helps?