diff --git a/fe-admin/src/components/pe/PeDetailTabs.tsx b/fe-admin/src/components/pe/PeDetailTabs.tsx
index 3025d55..b0725ac 100644
--- a/fe-admin/src/components/pe/PeDetailTabs.tsx
+++ b/fe-admin/src/components/pe/PeDetailTabs.tsx
@@ -995,7 +995,9 @@ function BudgetAdjustSection({ ev, readOnly }: { ev: PeDetailBundle; readOnly: b
   const [manualMode, setManualMode] = useState(initialManual)
   const [budgetId, setBudgetId] = useState(ev.budgetId ?? '')
   const [manualAmount, setManualAmount] = useState(ev.budgetManualAmount ?? 0)
-  const [manualName, setManualName] = useState(ev.budgetManualName ?? '')
+  // S59 UAT vòng 4 (anh chốt "chỗ tên ngân sách bỏ đi"): bỏ ô "Tên (không bắt buộc)"
+  // — user không hiểu ý nghĩa; manual budget chỉ còn Số tiền. Tên cũ (phiếu trước)
+  // vẫn hiển thị read-only, sẽ về null khi Lưu điều chỉnh lần tới.
 
   const eligibleBudgets = useQuery({
     queryKey: ['eligible-budgets-adjust', ev.projectId],
@@ -1008,7 +1010,7 @@ function BudgetAdjustSection({ ev, readOnly }: { ev: PeDetailBundle; readOnly: b
   const adjustMut = useMutation({
     mutationFn: async () => {
       const payload = manualMode
-        ? { budgetId: null, budgetManualName: manualName || null, budgetManualAmount: manualAmount > 0 ? manualAmount : null }
+        ? { budgetId: null, budgetManualName: null, budgetManualAmount: manualAmount > 0 ? manualAmount : null }
         : { budgetId: budgetId || null, budgetManualName: null, budgetManualAmount: null }
       await api.patch(`/purchase-evaluations/${ev.id}/budget-adjust`, payload)
     },
@@ -1057,7 +1059,6 @@ function BudgetAdjustSection({ ev, readOnly }: { ev: PeDetailBundle; readOnly: b
                 setManualMode(initialManual)
                 setBudgetId(ev.budgetId ?? '')
                 setManualAmount(ev.budgetManualAmount ?? 0)
-                setManualName(ev.budgetManualName ?? '')
                 setEditing(true)
               }}
               variant="ghost"
@@ -1099,29 +1100,18 @@ function BudgetAdjustSection({ ev, readOnly }: { ev: PeDetailBundle; readOnly: b
               </Select>
             </div>
           ) : (
-            <div className="grid gap-2 md:grid-cols-2">
-              <div>
-                <Label className="text-[11px]">Tên (không bắt buộc)</Label>
+            <div className="max-w-xs">
+              <Label className="text-[11px]">Số tiền (VND)</Label>
+              <div className="relative">
                 <Input
-                  value={manualName}
-                  onChange={e => setManualName(e.target.value)}
-                  placeholder="vd Ngân sách dự phòng Q2/2026"
-                  className="text-sm"
+                  type="text"
+                  inputMode="numeric"
+                  value={formatVndInput(manualAmount)}
+                  onChange={e => setManualAmount(parseVnd(e.target.value))}
+                  placeholder="0"
+                  className="pr-10 font-mono text-right text-sm"
                 />
-              </div>
-              <div>
-                <Label className="text-[11px]">Số tiền (VND)</Label>
-                <div className="relative">
-                  <Input
-                    type="text"
-                    inputMode="numeric"
-                    value={formatVndInput(manualAmount)}
-                    onChange={e => setManualAmount(parseVnd(e.target.value))}
-                    placeholder="0"
-                    className="pr-10 font-mono text-right text-sm"
-                  />
-                  <span className="pointer-events-none absolute inset-y-0 right-3 flex items-center text-[12px] font-medium text-slate-500">đ</span>
-                </div>
+                <span className="pointer-events-none absolute inset-y-0 right-3 flex items-center text-[12px] font-medium text-slate-500">đ</span>
               </div>
             </div>
           )}
diff --git a/fe-admin/src/components/pe/PeHeaderForm.tsx b/fe-admin/src/components/pe/PeHeaderForm.tsx
index 03bc7a8..bb0f0a3 100644
--- a/fe-admin/src/components/pe/PeHeaderForm.tsx
+++ b/fe-admin/src/components/pe/PeHeaderForm.tsx
@@ -101,7 +101,8 @@ export function PeHeaderForm({
 
   useEffect(() => {
     if (existing.data) {
-      const hasManual = existing.data.budgetManualName !== null
+      // S59: manual-mode detect theo CẢ amount (phiếu mới name=null sau khi bỏ ô Tên).
+      const hasManual = existing.data.budgetManualAmount !== null || existing.data.budgetManualName !== null
         || existing.data.budgetManualAmount !== null
       setForm({
         type: existing.data.type,
@@ -124,7 +125,7 @@ export function PeHeaderForm({
   const payloadBudgetFields = form.budgetManual
     ? {
         budgetId: null,
-        budgetManualName: form.budgetManualName || null,
+        budgetManualName: null, // S59 anh chốt bỏ "Tên ngân sách" — manual chỉ còn Số tiền
         budgetManualAmount: form.budgetManualAmount > 0 ? form.budgetManualAmount : null,
       }
     : {
diff --git a/fe-user/src/components/pe/PeDetailTabs.tsx b/fe-user/src/components/pe/PeDetailTabs.tsx
index 3025d55..b0725ac 100644
--- a/fe-user/src/components/pe/PeDetailTabs.tsx
+++ b/fe-user/src/components/pe/PeDetailTabs.tsx
@@ -995,7 +995,9 @@ function BudgetAdjustSection({ ev, readOnly }: { ev: PeDetailBundle; readOnly: b
   const [manualMode, setManualMode] = useState(initialManual)
   const [budgetId, setBudgetId] = useState(ev.budgetId ?? '')
   const [manualAmount, setManualAmount] = useState(ev.budgetManualAmount ?? 0)
-  const [manualName, setManualName] = useState(ev.budgetManualName ?? '')
+  // S59 UAT vòng 4 (anh chốt "chỗ tên ngân sách bỏ đi"): bỏ ô "Tên (không bắt buộc)"
+  // — user không hiểu ý nghĩa; manual budget chỉ còn Số tiền. Tên cũ (phiếu trước)
+  // vẫn hiển thị read-only, sẽ về null khi Lưu điều chỉnh lần tới.
 
   const eligibleBudgets = useQuery({
     queryKey: ['eligible-budgets-adjust', ev.projectId],
@@ -1008,7 +1010,7 @@ function BudgetAdjustSection({ ev, readOnly }: { ev: PeDetailBundle; readOnly: b
   const adjustMut = useMutation({
     mutationFn: async () => {
       const payload = manualMode
-        ? { budgetId: null, budgetManualName: manualName || null, budgetManualAmount: manualAmount > 0 ? manualAmount : null }
+        ? { budgetId: null, budgetManualName: null, budgetManualAmount: manualAmount > 0 ? manualAmount : null }
         : { budgetId: budgetId || null, budgetManualName: null, budgetManualAmount: null }
       await api.patch(`/purchase-evaluations/${ev.id}/budget-adjust`, payload)
     },
@@ -1057,7 +1059,6 @@ function BudgetAdjustSection({ ev, readOnly }: { ev: PeDetailBundle; readOnly: b
                 setManualMode(initialManual)
                 setBudgetId(ev.budgetId ?? '')
                 setManualAmount(ev.budgetManualAmount ?? 0)
-                setManualName(ev.budgetManualName ?? '')
                 setEditing(true)
               }}
               variant="ghost"
@@ -1099,29 +1100,18 @@ function BudgetAdjustSection({ ev, readOnly }: { ev: PeDetailBundle; readOnly: b
               </Select>
             </div>
           ) : (
-            <div className="grid gap-2 md:grid-cols-2">
-              <div>
-                <Label className="text-[11px]">Tên (không bắt buộc)</Label>
+            <div className="max-w-xs">
+              <Label className="text-[11px]">Số tiền (VND)</Label>
+              <div className="relative">
                 <Input
-                  value={manualName}
-                  onChange={e => setManualName(e.target.value)}
-                  placeholder="vd Ngân sách dự phòng Q2/2026"
-                  className="text-sm"
+                  type="text"
+                  inputMode="numeric"
+                  value={formatVndInput(manualAmount)}
+                  onChange={e => setManualAmount(parseVnd(e.target.value))}
+                  placeholder="0"
+                  className="pr-10 font-mono text-right text-sm"
                 />
-              </div>
-              <div>
-                <Label className="text-[11px]">Số tiền (VND)</Label>
-                <div className="relative">
-                  <Input
-                    type="text"
-                    inputMode="numeric"
-                    value={formatVndInput(manualAmount)}
-                    onChange={e => setManualAmount(parseVnd(e.target.value))}
-                    placeholder="0"
-                    className="pr-10 font-mono text-right text-sm"
-                  />
-                  <span className="pointer-events-none absolute inset-y-0 right-3 flex items-center text-[12px] font-medium text-slate-500">đ</span>
-                </div>
+                <span className="pointer-events-none absolute inset-y-0 right-3 flex items-center text-[12px] font-medium text-slate-500">đ</span>
               </div>
             </div>
           )}
diff --git a/fe-user/src/components/pe/PeHeaderForm.tsx b/fe-user/src/components/pe/PeHeaderForm.tsx
index 03bc7a8..bb0f0a3 100644
--- a/fe-user/src/components/pe/PeHeaderForm.tsx
+++ b/fe-user/src/components/pe/PeHeaderForm.tsx
@@ -101,7 +101,8 @@ export function PeHeaderForm({
 
   useEffect(() => {
     if (existing.data) {
-      const hasManual = existing.data.budgetManualName !== null
+      // S59: manual-mode detect theo CẢ amount (phiếu mới name=null sau khi bỏ ô Tên).
+      const hasManual = existing.data.budgetManualAmount !== null || existing.data.budgetManualName !== null
         || existing.data.budgetManualAmount !== null
       setForm({
         type: existing.data.type,
@@ -124,7 +125,7 @@ export function PeHeaderForm({
   const payloadBudgetFields = form.budgetManual
     ? {
         budgetId: null,
-        budgetManualName: form.budgetManualName || null,
+        budgetManualName: null, // S59 anh chốt bỏ "Tên ngân sách" — manual chỉ còn Số tiền
         budgetManualAmount: form.budgetManualAmount > 0 ? form.budgetManualAmount : null,
       }
     : {