diff --git a/GEMINI.md b/GEMINI.md
index d815880..4693669 100644
--- a/GEMINI.md
+++ b/GEMINI.md
@@ -47,4 +47,5 @@
 18. **Automated Messaging (Cron Jobs)**: The system uses `node-cron` for independent message scheduling (Preventive vs. Overdue). Overdue logic MUST implement safety checks using `overdue_warnings_count` and `last_overdue_warning_at` to avoid spamming the student. Immediate webhook triggers for `PAYMENT_OVERDUE` are disabled in favor of scheduled routines.
 19. **Numerical Data Integrity**: When retrieving data from PostgreSQL `NUMERIC` or `DECIMAL` columns, values MUST be explicitly cast to `Number()` in the backend before being sent to the frontend to prevent crashes when using `.toFixed()` in React.
 20. **Exam Duplication**: The system supports cloning evaluations. Duplicated exams MUST default to `draft` status and include `(Cópia)` in the title to allow verification before deployment to new classes.
+21. **Automatic Attendance Closure**: The system implements an automatic closure routine (`processAutoAbsences`) that generates physical "Absence" records in the PostgreSQL database for any past lesson where a student has no presence or justification. This routine is triggered during data save operations to ensure retroactive consistency between lessons and records.
 
diff --git a/MEMORY.md b/MEMORY.md
index 21b011d..52ea257 100644
--- a/MEMORY.md
+++ b/MEMORY.md
@@ -12,6 +12,7 @@
 - [x] **Migração Relacional de Frequência:** Portal migrado para ler frequências diretamente da tabela SQL `frequencias`. **VERIFICADO.**
 - [x] **Sincronização Bidirecional (Frequência):** Garantido que justificativas enviadas pelo Portal atualizem instantaneamente a tabela relacional via `ON CONFLICT`.
 - [x] **Auto-Migração de Esquema:** Implementada lógica de auto-correção de colunas (`ALTER TABLE`) na rotina de sincronização do banco de dados (`database.js`).
+- [x] **Fechamento Automático de Pauta:** Implementada rotina `processAutoAbsences` que gera registros físicos de falta para aulas passadas sem registro, garantindo consistência entre Portal e Manager.
 - [ ] Próximo Passo: Expandir a migração relacional para o módulo de "Minhas Aulas" no Portal para manter a consistência arquitetural.
 
 
diff --git a/manager/services/database.js b/manager/services/database.js
index cf027f9..bcce101 100644
--- a/manager/services/database.js
+++ b/manager/services/database.js
@@ -29,12 +29,71 @@ export async function getSchoolData() {
   return rows[0]?.data || {};
 }
 
+/**
+ * Percorre as aulas concluídas e gera registros de falta para alunos que não compareceram.
+ * Isso transforma faltas "virtuais" em registros físicos no banco de dados.
+ */
+export async function processAutoAbsences(data) {
+  if (!data.lessons || !data.students || !data.attendance) return data;
+
+  const now = new Date();
+  let updated = false;
+
+  // Cache de alunos por turma para performance
+  const studentsByClass = {};
+
+  data.lessons.forEach(lesson => {
+    const lessonEndStr = `${lesson.date}T${lesson.endTime || '23:59'}:00`;
+    const lessonEnd = new Date(lessonEndStr);
+
+    if (now > lessonEnd && lesson.status !== 'cancelled') {
+      if (!studentsByClass[lesson.classId]) {
+        studentsByClass[lesson.classId] = data.students.filter(s => s.classId === lesson.classId && s.status === 'active');
+      }
+
+      studentsByClass[lesson.classId].forEach(student => {
+        const hasRecord = data.attendance.some(a => 
+          a.studentId === student.id && 
+          (a.lessonId === lesson.id || (a.date && a.date.startsWith(lesson.date)))
+        );
+
+        if (!hasRecord) {
+          data.attendance.push({
+            id: `auto-abs-${Date.now()}-${Math.random().toString(36).substr(2, 5)}`,
+            studentId: student.id,
+            classId: lesson.classId,
+            lessonId: lesson.id,
+            date: `${lesson.date}T${lesson.startTime || '00:00'}:00`,
+            type: 'absence',
+            verified: true,
+            autoGenerated: true
+          });
+          updated = true;
+        }
+      });
+    }
+  });
+
+  if (updated) {
+    data.lastUpdated = new Date().toISOString();
+  }
+  return data;
+}
+
 export async function saveSchoolData(data) {
+  // Aplicar fechamento de pauta automático antes de salvar
+  const dataWithAbsences = await processAutoAbsences(data);
+  
   await pool.query(
     `INSERT INTO school_data (id, data, updated_at)
      VALUES (1, $1, NOW())
      ON CONFLICT (id) DO UPDATE SET data = $1, updated_at = NOW()`,
-    [JSON.stringify(data)]
+    [JSON.stringify(dataWithAbsences)]
+  );
+  
+  // Sincronizar tabelas relacionais em background para não travar o salvamento
+  syncJsonToRelationalTables(dataWithAbsences).catch(err => 
+    console.error('[Database:Sync] Erro na sincronização automática:', err)
   );
 }
 
diff --git a/portal/src/pages/Frequencia.tsx b/portal/src/pages/Frequencia.tsx
index 2f17de0..c84b91a 100644
--- a/portal/src/pages/Frequencia.tsx
+++ b/portal/src/pages/Frequencia.tsx
@@ -172,9 +172,9 @@ export default function Frequencia() {
 
   // Stats calculation (aligned with list logic)
   const totalCourseLessons = lessons.length;
-  const presences = attendance.filter(a => a.type === 'presence' || a.verified === true).length;
-  const absences = attendance.filter(a => a.type === 'absence' && !a.verified && !a.justification).length;
-  const justified = attendance.filter(a => !!a.justification).length;
+  const presences = attendance.filter(a => a.type === 'presence').length;
+  const absences = attendance.filter(a => a.type === 'absence' && !a.justification).length;
+  const justified = attendance.filter(a => a.type === 'absence' && !!a.justification).length;
   const completedLessons = processedItems.filter(item => item.isCompleted && item.lesson.status !== 'cancelled').length;
   const pendingLessons = processedItems.filter(item => !item.isCompleted && item.lesson.status !== 'cancelled').length;
   const percentage = totalCourseLessons > 0 ? Math.round((presences / totalCourseLessons) * 100) : 0;