diff --git a/services/billingSendService.js b/services/billingSendService.js
index 8f86876..99baa4c 100644
--- a/services/billingSendService.js
+++ b/services/billingSendService.js
@@ -40,8 +40,8 @@ function spintax(t) {
   });
 }
 
-function buildMessage(tplRaw, c, inv, qr) {
-  const amount = Number(inv.amount || 0);
+function buildMessage(tplRaw, c, inv, qr, totalAmount) {
+  const amount = Number(totalAmount || inv.amount || 0);
   const qrisAmount = Number((qr && qr.amount) || 0) || amount;
   const qrisCode = Number((qr && qr.uniqueCode) || 0) || 0;
   const qrisAttached = !!(qr && qr.payload);
@@ -77,7 +77,8 @@ function buildTargets(isolateDay) {
     if (!invs.length) continue;
     if (!c.phone || String(c.phone).replace(/\D/g, '').length < 9) continue;
     // invoice terurut dari periode terlama; tagih yang paling lama dulu
-    targets.push({ c, inv: invs[0] });
+    const total = invs.reduce((sum, row) => sum + (Number(row.amount) || 0), 0);
+    targets.push({ c, inv: invs[0], total });
   }
   return targets;
 }
@@ -118,10 +119,10 @@ async function start(opts = {}) {
   (async () => {
     for (let i = 0; i < targets.length; i++) {
       if (STATUS.stopped) break;
-      const { c, inv } = targets[i];
+      const { c, inv, total } = targets[i];
       try {
-        const qr = (isQris && ensureInvoiceQris) ? (ensureInvoiceQris(inv) || {}) : null;
-        const caption = buildMessage(tplRaw, c, inv, qr);
+        const qr = (isQris && ensureInvoiceQris) ? (ensureInvoiceQris(inv, total) || {}) : null;
+        const caption = buildMessage(tplRaw, c, inv, qr, total);
         if (isQris && QRCode && qr && qr.payload) {
           const url = await QRCode.toDataURL(qr.payload, { errorCorrectionLevel: 'M', margin: 1, width: 520 });
           const buf = Buffer.from(String(url).split(',')[1], 'base64');
diff --git a/services/invoiceQrisService.js b/services/invoiceQrisService.js
index b135a77..892b9da 100644
--- a/services/invoiceQrisService.js
+++ b/services/invoiceQrisService.js
@@ -30,10 +30,11 @@ function isQrisAmountTaken(amount, opts = {}) {
   return false;
 }
 
-function ensureInvoiceQris(inv) {
+function ensureInvoiceQris(inv, baseAmountOverride) {
   const settings = getSettings() || {};
   const invId = Number((inv && inv.id) || 0);
-  const base = Number((inv && inv.amount) || 0);
+  // baseAmountOverride dipakai bila nominal QRIS = total beberapa tagihan
+  const base = Number(baseAmountOverride || (inv && inv.amount) || 0);
   if (!invId || base <= 0) return { uniqueCode: 0, amount: base, payload: '' };
 
   let code = Number(inv.qris_unique_code || 0);