diff --git a/package.json b/package.json
index df20fac..d22a63b 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "build": "tsc",
     "start": "node dist/index.js",
     "backfill:graphs": "tsx src/scripts/backfill-graphs.ts",
+    "sync:product-structures": "tsx src/scripts/sync-product-structures.ts",
     "test": "echo \"Error: no test specified\" && exit 1"
   },
   "keywords": [],
diff --git a/src/index.ts b/src/index.ts
index 76f68c5..75e4dda 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -169,6 +169,121 @@ app.get('/api/stop-graphs-backfill', (req: Request, res: Response) => {
   });
 });
 
+// Hidden endpoint to sync Tiny product structures/composition into Graphs consumption references
+app.get('/api/trigger-product-structures-sync', (req: Request, res: Response) => {
+  const expectedToken = process.env.TINY_WEBHOOK_SECRET;
+  if (expectedToken && req.query.token !== expectedToken) {
+    res.status(401).json({ error: 'Unauthorized' });
+    return;
+  }
+
+  const scriptPath = path.join(__dirname, 'scripts', 'sync-product-structures.js');
+  const env = { ...process.env };
+  const stopFile = env.PRODUCT_STRUCTURES_STOP_FILE || path.join(process.cwd(), 'product_structures_sync_stop.json');
+
+  const optionalEnvMap: Record<string, string> = {
+    skus: 'PRODUCT_STRUCTURE_SKUS',
+    productIds: 'PRODUCT_STRUCTURE_PRODUCT_IDS',
+    inputFile: 'PRODUCT_STRUCTURES_INPUT_FILE',
+    graphsUrl: 'PRODUCT_STRUCTURES_GRAPHS_API_URL',
+    graphsApiKey: 'PRODUCT_STRUCTURES_GRAPHS_API_KEY',
+    dryRun: 'PRODUCT_STRUCTURES_DRY_RUN',
+    maxProducts: 'PRODUCT_STRUCTURES_MAX_PRODUCTS',
+    requestDelayMs: 'PRODUCT_STRUCTURES_REQUEST_DELAY_MS',
+    graphsRetryDelayMs: 'PRODUCT_STRUCTURES_GRAPHS_RETRY_DELAY_MS',
+    graphsMaxRetries: 'PRODUCT_STRUCTURES_GRAPHS_MAX_RETRIES'
+  };
+
+  for (const [queryKey, envKey] of Object.entries(optionalEnvMap)) {
+    const value = req.query[queryKey];
+    if (typeof value === 'string' && value.trim() !== '') {
+      env[envKey] = value.trim();
+    }
+  }
+
+  if (fs.existsSync(stopFile)) {
+    fs.rmSync(stopFile, { force: true });
+  }
+
+  const child = spawn('node', [scriptPath], {
+    detached: true,
+    stdio: 'inherit',
+    env
+  });
+
+  child.on('error', (error) => {
+    console.error(`[server]: Product structures sync process failed to start: ${error.message}`);
+  });
+
+  child.on('exit', (code, signal) => {
+    console.log(`[server]: Product structures sync process exited. code=${code ?? 'null'} signal=${signal ?? 'null'}`);
+  });
+
+  child.unref();
+
+  console.log('[server]: Product structures sync script manually triggered via HTTP endpoint.');
+  res.status(200).json({
+    status: 'STARTED',
+    message: 'Product structures sync is running in the background. Check Portainer logs for progress.',
+    options: {
+      skus: env.PRODUCT_STRUCTURE_SKUS || null,
+      productIds: env.PRODUCT_STRUCTURE_PRODUCT_IDS || null,
+      inputFile: env.PRODUCT_STRUCTURES_INPUT_FILE || null,
+      graphsUrl: env.PRODUCT_STRUCTURES_GRAPHS_API_URL || env.PRODUCTION_ORDERS_GRAPHS_API_URL || env.GRAPHS_PRODUCTION_ORDERS_API_URL || null,
+      dryRun: env.PRODUCT_STRUCTURES_DRY_RUN || 'false',
+      maxProducts: env.PRODUCT_STRUCTURES_MAX_PRODUCTS || null,
+      requestDelayMs: env.PRODUCT_STRUCTURES_REQUEST_DELAY_MS || '2500',
+      graphsMaxRetries: env.PRODUCT_STRUCTURES_GRAPHS_MAX_RETRIES || '3',
+      graphsApiKeyConfigured: Boolean(env.PRODUCT_STRUCTURES_GRAPHS_API_KEY || env.PRODUCTION_ORDERS_GRAPHS_API_KEY || env.GRAPHS_PRODUCTION_ORDERS_API_KEY || env.GRAPHS_API_KEY || env.NEXSTAR_GRAPHS_API_KEY || env.API_KEY)
+    }
+  });
+});
+
+app.get('/api/product-structures-sync-status', (req: Request, res: Response) => {
+  const expectedToken = process.env.TINY_WEBHOOK_SECRET;
+  if (expectedToken && req.query.token !== expectedToken) {
+    res.status(401).json({ error: 'Unauthorized' });
+    return;
+  }
+
+  const stateFile = process.env.PRODUCT_STRUCTURES_STATE_FILE || path.join(process.cwd(), 'product_structures_sync_state.json');
+  const stopFile = process.env.PRODUCT_STRUCTURES_STOP_FILE || path.join(process.cwd(), 'product_structures_sync_stop.json');
+  let state = null;
+
+  if (fs.existsSync(stateFile)) {
+    try {
+      state = JSON.parse(fs.readFileSync(stateFile, 'utf-8'));
+    } catch (error: any) {
+      res.status(500).json({ error: `Could not read product structures sync state: ${error.message}` });
+      return;
+    }
+  }
+
+  res.status(200).json({
+    status: state?.status || 'unknown',
+    stopRequested: fs.existsSync(stopFile),
+    state
+  });
+});
+
+app.get('/api/stop-product-structures-sync', (req: Request, res: Response) => {
+  const expectedToken = process.env.TINY_WEBHOOK_SECRET;
+  if (expectedToken && req.query.token !== expectedToken) {
+    res.status(401).json({ error: 'Unauthorized' });
+    return;
+  }
+
+  const stopFile = process.env.PRODUCT_STRUCTURES_STOP_FILE || path.join(process.cwd(), 'product_structures_sync_stop.json');
+  fs.writeFileSync(stopFile, JSON.stringify({
+    requestedAt: new Date().toISOString()
+  }, null, 2));
+
+  res.status(200).json({
+    status: 'STOP_REQUESTED',
+    message: 'Product structures sync will stop after the current wait/request finishes.'
+  });
+});
+
 // Hidden endpoint to download the stock CSV log directly from the browser
 app.get('/api/stock-logs/download', (req: Request, res: Response) => {
   const expectedToken = process.env.TINY_WEBHOOK_SECRET;
diff --git a/src/scripts/sync-product-structures.ts b/src/scripts/sync-product-structures.ts
new file mode 100644
index 0000000..5db2385
--- /dev/null
+++ b/src/scripts/sync-product-structures.ts
@@ -0,0 +1,547 @@
+import axios from 'axios';
+import dotenv from 'dotenv';
+import fs from 'fs';
+import path from 'path';
+
+dotenv.config();
+
+type TinyProduct = {
+    id: string;
+    codigo: string;
+    nome: string;
+    unidade?: string;
+};
+
+type TinyStructureComponent = {
+    id_componente?: string | number;
+    codigo?: string | number;
+    nome?: string;
+    quantidade?: string | number;
+};
+
+type ProductStructurePayload = {
+    order: {
+        tinyId: string;
+        number: string;
+        status: string;
+        productSku: string;
+        productDescription: string;
+        quantity: string;
+        unit: string;
+        issueDate: string | null;
+        expectedDate: string | null;
+        supplier: string;
+        lotCode: string;
+        notes: string;
+    };
+    components: Array<{
+        componentTinyId: string;
+        componentName: string;
+        componentSku: string;
+        quantityPerUnit: string;
+        totalQuantity: string;
+        unit: string;
+    }>;
+    steps: never[];
+};
+
+type SyncState = {
+    status?: 'running' | 'stopped' | 'completed';
+    processedProducts?: number;
+    failedProducts?: number;
+    lastSku?: string;
+    lastFailedSku?: string;
+    lastMessage?: string;
+    updatedAt?: string;
+};
+
+type RequestedProduct = {
+    id: string;
+    sku: string;
+};
+
+const TINY_API_TOKEN = process.env.TINY_API_TOKEN;
+const GRAPHS_PRODUCTION_ORDERS_URL = (
+    process.env.PRODUCT_STRUCTURES_GRAPHS_API_URL ||
+    process.env.PRODUCTION_ORDERS_GRAPHS_API_URL ||
+    process.env.GRAPHS_PRODUCTION_ORDERS_API_URL ||
+    (process.env.GRAPHS_API_BASE_URL ? `${process.env.GRAPHS_API_BASE_URL.replace(/\/+$/, '')}/api/production-orders/tiny-sync` : '') ||
+    'http://localhost:3004/api/production-orders/tiny-sync'
+);
+const GRAPHS_PRODUCTION_ORDERS_API_KEY = (
+    process.env.PRODUCT_STRUCTURES_GRAPHS_API_KEY ||
+    process.env.PRODUCTION_ORDERS_GRAPHS_API_KEY ||
+    process.env.GRAPHS_PRODUCTION_ORDERS_API_KEY ||
+    process.env.PRODUCTION_ORDERS_API_KEY ||
+    process.env.GRAPHS_API_KEY ||
+    process.env.NEXSTAR_GRAPHS_API_KEY ||
+    process.env.API_KEY ||
+    'nexstar_secret_key_123'
+);
+const INPUT_FILE = process.env.PRODUCT_STRUCTURES_INPUT_FILE || '';
+const SKUS = String(process.env.PRODUCT_STRUCTURE_SKUS || '')
+    .split(',')
+    .map(value => value.trim())
+    .filter(Boolean);
+const PRODUCT_IDS = String(process.env.PRODUCT_STRUCTURE_PRODUCT_IDS || '')
+    .split(',')
+    .map(value => value.trim())
+    .filter(Boolean);
+const DRY_RUN = process.env.PRODUCT_STRUCTURES_DRY_RUN === 'true';
+const FETCH_COMPONENT_UNITS = process.env.PRODUCT_STRUCTURES_FETCH_COMPONENT_UNITS !== 'false';
+const STATE_FILE = process.env.PRODUCT_STRUCTURES_STATE_FILE || path.join(process.cwd(), 'product_structures_sync_state.json');
+const STOP_FILE = process.env.PRODUCT_STRUCTURES_STOP_FILE || path.join(process.cwd(), 'product_structures_sync_stop.json');
+
+const numberEnv = (name: string, fallback: number) => {
+    const raw = process.env[name];
+    if (raw === undefined || raw.trim() === '') return fallback;
+
+    const value = Number(raw);
+    return Number.isFinite(value) && value >= 0 ? value : fallback;
+};
+const REQUEST_DELAY_MS = numberEnv('PRODUCT_STRUCTURES_REQUEST_DELAY_MS', 2500);
+const GRAPHS_RETRY_DELAY_MS = numberEnv('PRODUCT_STRUCTURES_GRAPHS_RETRY_DELAY_MS', 30000);
+const GRAPHS_MAX_RETRIES = numberEnv('PRODUCT_STRUCTURES_GRAPHS_MAX_RETRIES', 3);
+const MAX_PRODUCTS = numberEnv('PRODUCT_STRUCTURES_MAX_PRODUCTS', 0);
+
+let nextRequestAt = 0;
+const productDetailCache = new Map<string, TinyProduct | null>();
+
+class SyncStoppedError extends Error {
+    constructor() {
+        super('Product structures sync stopped by request.');
+    }
+}
+
+const sleep = (ms: number) => new Promise(resolve => setTimeout(resolve, ms));
+
+function assertNotStopped() {
+    if (fs.existsSync(STOP_FILE)) {
+        throw new SyncStoppedError();
+    }
+}
+
+async function sleepWithStop(ms: number, reason: string) {
+    if (ms <= 0) return;
+
+    const startedAt = Date.now();
+    let remaining = ms;
+    console.log(`[wait] Waiting ${ms}ms before ${reason}.`);
+
+    while (remaining > 0) {
+        assertNotStopped();
+        await sleep(Math.min(remaining, 1000));
+        remaining = ms - (Date.now() - startedAt);
+    }
+}
+
+async function waitForRequestSlot(reason: string) {
+    const waitMs = Math.max(0, nextRequestAt - Date.now());
+    await sleepWithStop(waitMs, reason);
+    nextRequestAt = Date.now() + REQUEST_DELAY_MS;
+}
+
+function saveState(state: SyncState) {
+    fs.writeFileSync(STATE_FILE, JSON.stringify({
+        ...state,
+        updatedAt: new Date().toISOString()
+    }, null, 2));
+}
+
+function describeRequestError(error: any) {
+    if (error?.response) {
+        const body = JSON.stringify(error.response.data ?? '');
+        const truncatedBody = body.length > 500 ? `${body.slice(0, 500)}...` : body;
+        return `HTTP ${error.response.status}: ${truncatedBody}`;
+    }
+
+    return error?.message || String(error);
+}
+
+function normalizeText(value: unknown) {
+    return String(value ?? '').trim();
+}
+
+function normalizeNumber(value: unknown) {
+    if (typeof value === 'number') return Number.isFinite(value) ? value : 0;
+    const raw = normalizeText(value);
+    if (!raw) return 0;
+    const normalized = raw.includes(',')
+        ? raw.replace(/\./g, '').replace(',', '.')
+        : raw;
+    const parsed = Number(normalized);
+    return Number.isFinite(parsed) ? parsed : 0;
+}
+
+function formatTinyDecimal(value: number) {
+    return Number.isFinite(value) ? String(value) : '0';
+}
+
+function parseDelimitedLine(line: string, delimiter: string) {
+    const values: string[] = [];
+    let current = '';
+    let quoted = false;
+
+    for (let index = 0; index < line.length; index += 1) {
+        const char = line[index];
+        const nextChar = line[index + 1];
+
+        if (char === '"' && quoted && nextChar === '"') {
+            current += '"';
+            index += 1;
+            continue;
+        }
+
+        if (char === '"') {
+            quoted = !quoted;
+            continue;
+        }
+
+        if (char === delimiter && !quoted) {
+            values.push(current);
+            current = '';
+            continue;
+        }
+
+        current += char;
+    }
+
+    values.push(current);
+    return values;
+}
+
+function parseDelimitedFile(raw: string, delimiter: string) {
+    const lines = raw
+        .replace(/^\uFEFF/, '')
+        .split(/\r?\n/)
+        .filter(line => line.trim() !== '');
+    const headers = parseDelimitedLine(lines[0] || '', delimiter).map(header => header.trim());
+
+    return lines.slice(1).map(line => {
+        const values = parseDelimitedLine(line, delimiter);
+        return headers.reduce<Record<string, string>>((row, header, index) => {
+            row[header] = values[index] || '';
+            return row;
+        }, {});
+    });
+}
+
+function readInputFile() {
+    const filePath = path.resolve(INPUT_FILE);
+    const raw = fs.readFileSync(filePath, 'utf-8');
+    const extension = path.extname(filePath).toLowerCase();
+
+    if (extension === '.csv') {
+        return parseDelimitedFile(raw, ',');
+    }
+
+    if (extension === '.tsv') {
+        return parseDelimitedFile(raw, '\t');
+    }
+
+    const parsed = JSON.parse(raw);
+    if (Array.isArray(parsed)) return parsed;
+    return parsed?.skus || parsed?.products || parsed?.items || [];
+}
+
+function loadRequestedProducts() {
+    const productsFromFile: RequestedProduct[] = INPUT_FILE
+        ? readInputFile().map((entry: any) => ({
+            id: normalizeText(entry.id || entry.tinyId || entry.productId || entry['ID Produto'] || entry.ID_Produto),
+            sku: normalizeText(entry.sku || entry.codigo || entry.productSku || entry.SKU || entry.Código || entry.Codigo)
+        }))
+        : [];
+
+    return productsFromFile
+        .concat(SKUS.map(sku => ({ id: '', sku })))
+        .concat(PRODUCT_IDS.map(id => ({ id, sku: '' })))
+        .filter((entry: RequestedProduct, index: number, all: RequestedProduct[]) => {
+            const key = entry.id ? `id:${entry.id}` : `sku:${entry.sku.toUpperCase()}`;
+            return (entry.id || entry.sku) && all.findIndex((other: RequestedProduct) => {
+                const otherKey = other.id ? `id:${other.id}` : `sku:${other.sku.toUpperCase()}`;
+                return otherKey === key;
+            }) === index;
+        });
+}
+
+async function tinyPost(servicePhp: string, params: URLSearchParams) {
+    if (!TINY_API_TOKEN) {
+        throw new Error('Missing TINY_API_TOKEN.');
+    }
+
+    await waitForRequestSlot(`Tiny ${servicePhp} request slot`);
+    return axios.post(`https://api.tiny.com.br/api2/${servicePhp}`, params, {
+        headers: { 'Content-Type': 'application/x-www-form-urlencoded' }
+    });
+}
+
+async function searchProductBySku(sku: string): Promise<TinyProduct | null> {
+    const params = new URLSearchParams();
+    params.append('token', TINY_API_TOKEN!);
+    params.append('formato', 'JSON');
+    params.append('pesquisa', sku);
+    params.append('pagina', '1');
+
+    const response = await tinyPost('produtos.pesquisa.php', params);
+    const retorno = response.data?.retorno;
+    if (retorno?.status !== 'OK') {
+        console.warn(`[Tiny] Product search failed for ${sku}: ${JSON.stringify(retorno?.erros || retorno || 'Unknown error')}`);
+        return null;
+    }
+
+    const products = (retorno.produtos || [])
+        .map((entry: any) => entry?.produto || entry)
+        .filter(Boolean);
+    const exact = products.find((product: any) => normalizeText(product.codigo).toUpperCase() === sku.toUpperCase());
+    const selected = exact || products[0];
+    if (!selected) return null;
+
+    return {
+        id: normalizeText(selected.id),
+        codigo: normalizeText(selected.codigo),
+        nome: normalizeText(selected.nome),
+        unidade: normalizeText(selected.unidade)
+    };
+}
+
+async function getProductById(id: string): Promise<TinyProduct | null> {
+    if (productDetailCache.has(id)) return productDetailCache.get(id) || null;
+
+    const params = new URLSearchParams();
+    params.append('token', TINY_API_TOKEN!);
+    params.append('formato', 'JSON');
+    params.append('id', id);
+
+    const response = await tinyPost('produto.obter.php', params);
+    const produto = response.data?.retorno?.produto;
+    if (!produto) {
+        console.warn(`[Tiny] Product get failed for ${id}: ${JSON.stringify(response.data?.retorno?.erros || response.data?.retorno || 'Unknown error')}`);
+        productDetailCache.set(id, null);
+        return null;
+    }
+
+    const detail = {
+        id: normalizeText(produto.id || id),
+        codigo: normalizeText(produto.codigo),
+        nome: normalizeText(produto.nome),
+        unidade: normalizeText(produto.unidade)
+    };
+    productDetailCache.set(id, detail);
+    return detail;
+}
+
+async function getProductStructure(product: TinyProduct): Promise<ProductStructurePayload | null> {
+    const params = new URLSearchParams();
+    params.append('token', TINY_API_TOKEN!);
+    params.append('formato', 'JSON');
+    params.append('id', product.id);
+
+    const response = await tinyPost('produto.obter.estrutura.php', params);
+    const retorno = response.data?.retorno;
+    if (retorno?.status !== 'OK') {
+        console.warn(`[Tiny] Product structure failed for ${product.codigo || product.id}: ${JSON.stringify(retorno?.erros || retorno || 'Unknown error')}`);
+        return null;
+    }
+
+    const produto = retorno.produto || {};
+    const finishedSku = normalizeText(produto.codigo || product.codigo);
+    const finishedName = normalizeText(produto.nome || product.nome);
+    const rawComponents = (Array.isArray(produto.estrutura) ? produto.estrutura : [])
+        .map((entry: any) => entry?.item || entry)
+        .filter(Boolean);
+    const components = [];
+
+    for (const component of rawComponents as TinyStructureComponent[]) {
+        const quantityPerUnit = normalizeNumber(component.quantidade);
+        const componentTinyId = normalizeText(component.id_componente);
+        const componentDetail = FETCH_COMPONENT_UNITS && componentTinyId
+            ? await getProductById(componentTinyId)
+            : null;
+
+        components.push({
+            componentTinyId,
+            componentName: normalizeText(component.nome || componentDetail?.nome),
+            componentSku: normalizeText(component.codigo || componentDetail?.codigo),
+            quantityPerUnit: formatTinyDecimal(quantityPerUnit),
+            totalQuantity: formatTinyDecimal(quantityPerUnit),
+            unit: normalizeText(componentDetail?.unidade)
+        });
+    }
+
+    const filteredComponents = components
+        .filter((component: ProductStructurePayload['components'][number]) => component.componentSku || component.componentName);
+
+    return {
+        order: {
+            tinyId: `STRUCTURE-${product.id}`,
+            number: `STRUCTURE-${finishedSku || product.id}`,
+            status: 'completed',
+            productSku: finishedSku,
+            productDescription: finishedName,
+            quantity: '1',
+            unit: product.unidade || 'UN',
+            issueDate: null,
+            expectedDate: null,
+            supplier: '',
+            lotCode: '',
+            notes: `Composição sincronizada do Tiny produto.obter.estrutura.php para produto ${product.id}.`
+        },
+        components: filteredComponents,
+        steps: []
+    };
+}
+
+async function resolveProduct(requested: RequestedProduct) {
+    if (requested.id) return getProductById(requested.id);
+    return searchProductBySku(requested.sku);
+}
+
+async function sendStructure(payload: ProductStructurePayload) {
+    if (DRY_RUN) {
+        console.log(`[dry-run] Would send structure ${payload.order.productSku}`);
+        console.log(JSON.stringify(payload, null, 2));
+        return true;
+    }
+
+    let attempt = 0;
+    while (true) {
+        try {
+            await waitForRequestSlot(`Graphs product structure ${payload.order.productSku}`);
+            await axios.post(GRAPHS_PRODUCTION_ORDERS_URL, payload, {
+                headers: {
+                    'Content-Type': 'application/json',
+                    'x-api-key': GRAPHS_PRODUCTION_ORDERS_API_KEY
+                }
+            });
+            console.log(`[Graphs Structure] Sent ${payload.order.productSku} with ${payload.components.length} component(s).`);
+            return true;
+        } catch (error: any) {
+            attempt += 1;
+            const status = error?.response?.status;
+            const shouldRetry = !status || status >= 500;
+            console.error(`[Graphs Structure] Failed to send ${payload.order.productSku} on attempt ${attempt}: ${describeRequestError(error)}`);
+
+            if (!shouldRetry || (GRAPHS_MAX_RETRIES && attempt >= GRAPHS_MAX_RETRIES)) {
+                console.error(`[Graphs Structure] Giving up on ${payload.order.productSku}; sync will continue.`);
+                return false;
+            }
+
+            await sleepWithStop(GRAPHS_RETRY_DELAY_MS, `retrying Graphs structure ${payload.order.productSku}`);
+        }
+    }
+}
+
+async function runSync() {
+    const requestedProducts = loadRequestedProducts();
+    if (!requestedProducts.length) {
+        throw new Error('No products configured. Set PRODUCT_STRUCTURE_SKUS, PRODUCT_STRUCTURE_PRODUCT_IDS, or PRODUCT_STRUCTURES_INPUT_FILE.');
+    }
+
+    console.log(`[config] Graphs URL: ${GRAPHS_PRODUCTION_ORDERS_URL}`);
+    console.log(`[config] Dry run: ${DRY_RUN ? 'yes' : 'no'}`);
+    console.log(`[config] Request pace: 1 request every ${REQUEST_DELAY_MS}ms`);
+    console.log(`[config] State file: ${STATE_FILE}`);
+    console.log(`[config] Stop file: ${STOP_FILE}`);
+    console.log(`[source] Found ${requestedProducts.length} requested product(s).`);
+
+    saveState({
+        status: 'running',
+        processedProducts: 0,
+        failedProducts: 0,
+        lastMessage: 'Product structures sync started'
+    });
+
+    let processedProducts = 0;
+    let failedProducts = 0;
+
+    for (const requested of requestedProducts) {
+        assertNotStopped();
+        if (MAX_PRODUCTS && processedProducts + failedProducts >= MAX_PRODUCTS) {
+            console.log(`[limit] Stopped after ${MAX_PRODUCTS} product(s).`);
+            break;
+        }
+
+        const label = requested.sku || requested.id;
+        try {
+            const product = await resolveProduct(requested);
+            if (!product?.id) {
+                console.warn(`[Tiny] Product not found for ${label}.`);
+                failedProducts += 1;
+                saveState({
+                    status: 'running',
+                    processedProducts,
+                    failedProducts,
+                    lastFailedSku: label,
+                    lastMessage: `Product not found for ${label}`
+                });
+                continue;
+            }
+
+            const payload = await getProductStructure(product);
+            if (!payload) {
+                failedProducts += 1;
+                saveState({
+                    status: 'running',
+                    processedProducts,
+                    failedProducts,
+                    lastFailedSku: product.codigo || product.id,
+                    lastMessage: `Could not get structure for ${product.codigo || product.id}`
+                });
+                continue;
+            }
+
+            const sent = await sendStructure(payload);
+            if (sent) {
+                processedProducts += 1;
+            } else {
+                failedProducts += 1;
+            }
+
+            saveState({
+                status: 'running',
+                processedProducts,
+                failedProducts,
+                lastSku: sent ? payload.order.productSku : undefined,
+                lastFailedSku: sent ? undefined : payload.order.productSku,
+                lastMessage: sent ? `Synced structure ${payload.order.productSku}` : `Failed structure ${payload.order.productSku}; continuing`
+            });
+        } catch (error: any) {
+            if (error instanceof SyncStoppedError) throw error;
+            failedProducts += 1;
+            console.error(`[sync] Failed product ${label}: ${describeRequestError(error)}`);
+            saveState({
+                status: 'running',
+                processedProducts,
+                failedProducts,
+                lastFailedSku: label,
+                lastMessage: `Failed product ${label}; continuing`
+            });
+        }
+    }
+
+    saveState({
+        status: 'completed',
+        processedProducts,
+        failedProducts,
+        lastMessage: failedProducts ? `Product structures sync completed with ${failedProducts} failed product(s)` : 'Product structures sync completed'
+    });
+    console.log(`Done. Synced ${processedProducts} product structure(s). Failed products: ${failedProducts}.`);
+}
+
+runSync().catch((error: any) => {
+    if (error instanceof SyncStoppedError) {
+        console.log('Product structures sync stopped by request.');
+        saveState({
+            status: 'stopped',
+            lastMessage: 'Product structures sync stopped by request'
+        });
+        process.exit(0);
+    }
+
+    console.error(`Product structures sync failed: ${describeRequestError(error)}`);
+    saveState({
+        status: 'stopped',
+        lastMessage: `Product structures sync failed: ${describeRequestError(error)}`
+    });
+    process.exit(1);
+});