diff --git a/README.md b/README.md
index 6d07f46..e173c1b 100644
--- a/README.md
+++ b/README.md
@@ -67,7 +67,7 @@ OLIST_SYNC_ENABLED=true
 
 `OLIST_TOKEN_ENCRYPTION_KEY` must be stable between deploys because Graphs uses it to encrypt OAuth tokens stored in PostgreSQL. The initial sync is full; later scheduled runs are incremental and use the product update date. Manual JSON import remains available as a fallback.
 
-Graphs waits at least 2.5 seconds between every Olist API request (24 requests/minute). This keeps capacity available for other Tiny/Olist integrations. `OLIST_SYNC_REQUEST_DELAY_MS` can increase that delay but cannot lower it below 2500.
+Graphs waits at least 2.5 seconds between every Olist API request (24 requests/minute). This keeps capacity available for other Tiny/Olist integrations. The first catalog scan caches product IDs, SKUs, descriptions, and units; each checked BOM is persisted immediately, so a restarted full sync resumes from the remaining products. Later runs use Olist's `dataAlteracao` filter instead of listing the full catalog. `OLIST_SYNC_REQUEST_DELAY_MS` can increase that delay but cannot lower it below 2500.
 
 ### Cutting Workbook Import
 
diff --git a/backend/db.js b/backend/db.js
index 63212e9..450a53c 100644
--- a/backend/db.js
+++ b/backend/db.js
@@ -318,6 +318,27 @@ const initDB = async () => {
             );
         `);
 
+        await pool.query(`
+            CREATE TABLE IF NOT EXISTS olist_product_cache (
+                olist_product_id BIGINT PRIMARY KEY,
+                sku VARCHAR(100),
+                description TEXT NOT NULL,
+                unit VARCHAR(30) NOT NULL DEFAULT 'UN',
+                last_changed_at TIMESTAMPTZ,
+                structure_checked_at TIMESTAMPTZ,
+                is_manufactured BOOLEAN,
+                updated_at TIMESTAMPTZ DEFAULT CURRENT_TIMESTAMP
+            );
+        `);
+
+        await pool.query(`
+            CREATE TABLE IF NOT EXISTS olist_sync_state (
+                id SMALLINT PRIMARY KEY CHECK (id = 1),
+                last_catalog_sync_at TIMESTAMPTZ,
+                updated_at TIMESTAMPTZ DEFAULT CURRENT_TIMESTAMP
+            );
+        `);
+
         await pool.query(`
             CREATE TABLE IF NOT EXISTS consumption_references (
                 id SERIAL PRIMARY KEY,
@@ -596,6 +617,7 @@ const initDB = async () => {
         await pool.query(`CREATE INDEX IF NOT EXISTS idx_catalog_products_type ON catalog_products (type);`);
         await pool.query(`CREATE INDEX IF NOT EXISTS idx_catalog_products_category_id ON catalog_products (category_id);`);
         await pool.query(`CREATE INDEX IF NOT EXISTS idx_olist_sync_runs_started_at ON olist_sync_runs (started_at DESC);`);
+        await pool.query(`CREATE INDEX IF NOT EXISTS idx_olist_product_cache_pending_structure ON olist_product_cache (structure_checked_at) WHERE structure_checked_at IS NULL;`);
         await pool.query(`CREATE INDEX IF NOT EXISTS idx_consumption_references_product_id ON consumption_references (product_id);`);
         await pool.query(`CREATE INDEX IF NOT EXISTS idx_consumption_references_material_product_id ON consumption_references (material_product_id);`);
         await pool.query(`
diff --git a/backend/services/olistService.js b/backend/services/olistService.js
index dd426db..4477cb7 100644
--- a/backend/services/olistService.js
+++ b/backend/services/olistService.js
@@ -107,13 +107,37 @@ const listSyncRuns = async (limit = 5) => {
     return result.rows.map(mapRun);
 };
 
+const getCatalogSyncState = async () => {
+    const result = await pool.query('SELECT * FROM olist_sync_state WHERE id = 1;');
+    return result.rows[0] || null;
+};
+
+const getProductCacheProgress = async () => {
+    const result = await pool.query(`
+        SELECT
+            COUNT(*)::int AS total,
+            COUNT(*) FILTER (WHERE structure_checked_at IS NOT NULL)::int AS checked,
+            COUNT(*) FILTER (WHERE structure_checked_at IS NULL)::int AS pending,
+            COUNT(*) FILTER (WHERE is_manufactured IS TRUE)::int AS manufactured
+        FROM olist_product_cache;
+    `);
+    const row = result.rows[0];
+    return {
+        total: Number(row.total || 0),
+        checked: Number(row.checked || 0),
+        pending: Number(row.pending || 0),
+        manufactured: Number(row.manufactured || 0)
+    };
+};
+
 const getOlistStatus = async () => {
-    const [connection, runs] = await Promise.all([getConnection(), listSyncRuns()]);
+    const [connection, runs, productCache] = await Promise.all([getConnection(), listSyncRuns(), getProductCacheProgress()]);
     return {
         configured: isOlistConfigured(),
         connected: Boolean(connection),
         tokenExpiresAt: connection?.token_expires_at || null,
         syncInProgress: Boolean(activeSync),
+        productCache,
         runs
     };
 };
@@ -250,11 +274,19 @@ const olistRequest = async (path, retry = true) => {
     return data;
 };
 
-const listOlistProducts = async () => {
+const formatOlistDate = (value) => {
+    const date = new Date(value);
+    if (Number.isNaN(date.getTime())) return '';
+    return date.toISOString().slice(0, 19).replace('T', ' ');
+};
+
+const listOlistProducts = async (changedAfter = null) => {
     const products = [];
     let offset = 0;
     do {
-        const page = await olistRequest(`/produtos?${new URLSearchParams({ limit: '100', offset: String(offset) })}`);
+        const params = new URLSearchParams({ limit: '100', offset: String(offset) });
+        if (changedAfter) params.set('dataAlteracao', formatOlistDate(changedAfter));
+        const page = await olistRequest(`/produtos?${params}`);
         products.push(...(Array.isArray(page?.itens) ? page.itens : []));
         offset += page?.paginacao?.limit || 100;
         if (offset >= Number(page?.paginacao?.total || 0)) break;
@@ -262,6 +294,75 @@ const listOlistProducts = async () => {
     return products;
 };
 
+const cacheOlistProducts = async (products) => {
+    for (const product of products) {
+        if (!product?.id || !normalizeText(product.descricao)) continue;
+        await pool.query(`
+            INSERT INTO olist_product_cache (
+                olist_product_id, sku, description, unit, last_changed_at, updated_at
+            )
+            VALUES ($1, $2, $3, $4, $5, CURRENT_TIMESTAMP)
+            ON CONFLICT (olist_product_id) DO UPDATE
+            SET sku = EXCLUDED.sku,
+                description = EXCLUDED.description,
+                unit = EXCLUDED.unit,
+                structure_checked_at = CASE
+                    WHEN olist_product_cache.last_changed_at IS DISTINCT FROM EXCLUDED.last_changed_at
+                    THEN NULL
+                    ELSE olist_product_cache.structure_checked_at
+                END,
+                last_changed_at = EXCLUDED.last_changed_at,
+                updated_at = CURRENT_TIMESTAMP;
+        `, [
+            String(product.id),
+            normalizeText(product.sku) || null,
+            normalizeText(product.descricao),
+            normalizeText(product.unidade) || 'UN',
+            product.dataAlteracao || product.dataCriacao || null
+        ]);
+    }
+};
+
+const updateCatalogCheckpoint = async () => {
+    await pool.query(`
+        INSERT INTO olist_sync_state (id, last_catalog_sync_at, updated_at)
+        VALUES (1, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
+        ON CONFLICT (id) DO UPDATE
+        SET last_catalog_sync_at = EXCLUDED.last_catalog_sync_at,
+            updated_at = CURRENT_TIMESTAMP;
+    `);
+};
+
+const listStructureCandidates = async () => {
+    const result = await pool.query(`
+        SELECT olist_product_id, sku, description, unit
+        FROM olist_product_cache
+        WHERE structure_checked_at IS NULL
+        ORDER BY olist_product_id;
+    `);
+    return result.rows.map(row => ({
+        id: String(row.olist_product_id),
+        sku: row.sku || '',
+        descricao: row.description,
+        unidade: row.unit || 'UN'
+    }));
+};
+
+const getCachedUnitById = async () => {
+    const result = await pool.query('SELECT olist_product_id, unit FROM olist_product_cache;');
+    return new Map(result.rows.map(row => [String(row.olist_product_id), row.unit || 'UN']));
+};
+
+const markStructureChecked = async (productId, isManufactured) => {
+    await pool.query(`
+        UPDATE olist_product_cache
+        SET structure_checked_at = CURRENT_TIMESTAMP,
+            is_manufactured = $2,
+            updated_at = CURRENT_TIMESTAMP
+        WHERE olist_product_id = $1;
+    `, [String(productId), isManufactured]);
+};
+
 const createRun = async ({ trigger, mode }) => {
     const result = await pool.query(`
         INSERT INTO olist_sync_runs (trigger, mode, status)
@@ -296,8 +397,8 @@ const runOlistSync = async ({ trigger = 'manual', fullSync = false } = {}) => {
     if (activeSync) return activeSync;
 
     activeSync = (async () => {
-        const lastSuccessful = (await listSyncRuns(20)).find(run => run.status === 'completed');
-        const mode = fullSync || !lastSuccessful ? 'full' : 'incremental';
+        const [checkpoint, cacheProgress] = await Promise.all([getCatalogSyncState(), getProductCacheProgress()]);
+        const mode = fullSync || !checkpoint || cacheProgress.pending > 0 ? 'full' : 'incremental';
         const run = await createRun({ trigger, mode });
         const summary = { productsScanned: 0, manufacturedProducts: 0, imported: 0, componentCount: 0, referenceCount: 0, skippedReferenceCount: 0, failed: 0, details: [] };
         let lockClient;
@@ -310,18 +411,22 @@ const runOlistSync = async ({ trigger = 'manual', fullSync = false } = {}) => {
                 throw error;
             }
 
-            const allProducts = await listOlistProducts();
-            const unitById = new Map(allProducts.map(product => [String(product.id), product.unidade || 'UN']));
-            const changedAfter = mode === 'incremental' ? new Date(lastSuccessful.completedAt || lastSuccessful.startedAt) : null;
-            const candidates = changedAfter
-                ? allProducts.filter(product => !product.dataAlteracao || new Date(product.dataAlteracao).getTime() >= changedAfter.getTime())
-                : allProducts;
+            const resumePendingFullScan = mode === 'full' && cacheProgress.total > 0 && cacheProgress.pending > 0;
+            if (!resumePendingFullScan) {
+                const changedProducts = await listOlistProducts(mode === 'incremental' ? checkpoint.last_catalog_sync_at : null);
+                await cacheOlistProducts(changedProducts);
+                await updateCatalogCheckpoint();
+            }
+            const [candidates, unitById] = await Promise.all([listStructureCandidates(), getCachedUnitById()]);
             for (const product of candidates) {
                 summary.productsScanned += 1;
                 try {
                     const structure = await olistRequest(`/produtos/${product.id}/fabricado`);
                     const components = Array.isArray(structure?.produtos) ? structure.produtos : [];
-                    if (!components.length) continue;
+                    if (!components.length) {
+                        await markStructureChecked(product.id, false);
+                        continue;
+                    }
                     const result = await upsertTinyProductComposition({
                         tinyId: String(product.id),
                         productSku: product.sku,
@@ -340,8 +445,11 @@ const runOlistSync = async ({ trigger = 'manual', fullSync = false } = {}) => {
                     summary.componentCount += result.componentCount || 0;
                     summary.referenceCount += result.referenceCount || 0;
                     summary.skippedReferenceCount += result.skippedReferenceCount || 0;
+                    await markStructureChecked(product.id, true);
                 } catch (error) {
-                    if (error.statusCode !== 400 && error.statusCode !== 404) {
+                    if (error.statusCode === 400 || error.statusCode === 404) {
+                        await markStructureChecked(product.id, false);
+                    } else {
                         summary.failed += 1;
                         summary.details.push({ productId: product.id, sku: product.sku || '', error: error.message });
                     }
diff --git a/src/pages/Registrations.tsx b/src/pages/Registrations.tsx
index 06d2f07..093da7c 100644
--- a/src/pages/Registrations.tsx
+++ b/src/pages/Registrations.tsx
@@ -593,6 +593,9 @@ const Registrations = () => {
           <span>{olistStatus.runs[0].mode === 'full' ? 'Carga completa' : 'Atualização incremental'}</span>
           <span>{olistStatus.runs[0].imported} composições</span>
           <span>{olistStatus.runs[0].referenceCount} referências</span>
+          {olistStatus.productCache.total > 0 && (
+            <span>{olistStatus.productCache.checked.toLocaleString('pt-BR')} / {olistStatus.productCache.total.toLocaleString('pt-BR')} estruturas verificadas</span>
+          )}
           {olistStatus.runs[0].failed > 0 && <span className="text-red-300">{olistStatus.runs[0].failed} falhas</span>}
         </div>
       )}
diff --git a/src/types.ts b/src/types.ts
index 958b90c..7ed1547 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -227,6 +227,12 @@ export interface OlistStatus {
   connected: boolean;
   tokenExpiresAt: string | null;
   syncInProgress: boolean;
+  productCache: {
+    total: number;
+    checked: number;
+    pending: number;
+    manufactured: number;
+  };
   runs: OlistSyncRun[];
 }