diff --git a/autoload/Domain/Product/ProductRepository.php b/autoload/Domain/Product/ProductRepository.php
index f0dd1e8..a538629 100644
--- a/autoload/Domain/Product/ProductRepository.php
+++ b/autoload/Domain/Product/ProductRepository.php
@@ -654,6 +654,10 @@ class ProductRepository
             'custom_label_2' => $product['custom_label_2'],
             'custom_label_3' => $product['custom_label_3'],
             'custom_label_4' => $product['custom_label_4'],
+            'new_to_date' => $product['new_to_date'],
+            'additional_message' => (int)($product['additional_message'] ?? 0),
+            'additional_message_required' => (int)($product['additional_message_required'] ?? 0),
+            'additional_message_text' => $product['additional_message_text'],
             'set_id' => $product['set_id'] !== null ? (int)$product['set_id'] : null,
             'product_unit_id' => $product['product_unit_id'] !== null ? (int)$product['product_unit_id'] : null,
             'producer_id' => $product['producer_id'] !== null ? (int)$product['producer_id'] : null,
diff --git a/autoload/api/Controllers/ProductsApiController.php b/autoload/api/Controllers/ProductsApiController.php
index 9b8c48b..1b91c11 100644
--- a/autoload/api/Controllers/ProductsApiController.php
+++ b/autoload/api/Controllers/ProductsApiController.php
@@ -437,7 +437,7 @@ class ProductsApiController
         // String fields — direct mapping
         $stringFields = [
             'sku', 'ean', 'custom_label_0', 'custom_label_1', 'custom_label_2',
-            'custom_label_3', 'custom_label_4', 'wp',
+            'custom_label_3', 'custom_label_4', 'wp', 'new_to_date', 'additional_message_text',
         ];
         foreach ($stringFields as $field) {
             if (isset($body[$field])) {
@@ -447,6 +447,18 @@ class ProductsApiController
             }
         }
 
+        if (isset($body['additional_message'])) {
+            $d['additional_message'] = !empty($body['additional_message']) ? 'on' : '';
+        } elseif ($existing !== null) {
+            $d['additional_message'] = !empty($existing['additional_message']) ? 'on' : '';
+        }
+
+        if (isset($body['additional_message_required'])) {
+            $d['additional_message_required'] = !empty($body['additional_message_required']) ? 'on' : '';
+        } elseif ($existing !== null) {
+            $d['additional_message_required'] = !empty($existing['additional_message_required']) ? 'on' : '';
+        }
+
         // Foreign keys
         if (isset($body['set_id'])) {
             $d['set'] = $body['set_id'];
diff --git a/docs/API.md b/docs/API.md
index 5f4a221..5688e19 100644
--- a/docs/API.md
+++ b/docs/API.md
@@ -216,6 +216,10 @@ Odpowiedz:
     "weight": 0.5,
     "stock_0_buy": 0,
     "custom_label_0": null,
+    "new_to_date": null,
+    "additional_message": 0,
+    "additional_message_required": 0,
+    "additional_message_text": null,
     "set_id": null,
     "product_unit_id": 1,
     "producer_id": 3,
@@ -294,6 +298,10 @@ Content-Type: application/json
   "status": 1,
   "sku": "PROD-001",
   "ean": "5901234123457",
+  "new_to_date": null,
+  "additional_message": 0,
+  "additional_message_required": 0,
+  "additional_message_text": null,
   "weight": 0.5,
   "languages": {
     "pl": {
@@ -330,6 +338,10 @@ Content-Type: application/json
 {
   "price_brutto": 129.99,
   "status": 1,
+  "new_to_date": "2026-12-31",
+  "additional_message": 1,
+  "additional_message_required": 0,
+  "additional_message_text": "Dodaj tresc do personalizacji",
   "languages": {
     "pl": {
       "name": "Zaktualizowana nazwa"
@@ -339,6 +351,7 @@ Content-Type: application/json
 ```
 
 Partial update — wystarczy przeslac tylko zmienione pola. Pola nieprzeslane zachowuja aktualna wartosc.
+Pola ustawien produktu obslugiwane przez API: `new_to_date`, `additional_message`, `additional_message_required`, `additional_message_text`.
 
 Odpowiedz: pelne dane produktu (jak w `get`).
 
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 365c0cb..fb51540 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -4,6 +4,14 @@ Logi zmian z migracji na Domain-Driven Architecture. Najnowsze na gorze.
 
 ---
 
+## ver. 0.332 (2026-03-01) - API produktów: nowe pola new_to_date i additional_message
+
+- **NEW**: `ProductRepository::getProductForApi()` — eksportuje 4 nowe pola: `new_to_date`, `additional_message` (int 0/1), `additional_message_required` (int 0/1), `additional_message_text`
+- **NEW**: `ProductsApiController` — obsługa nowych pól w PUT/PATCH (aktualizacja `new_to_date`, `additional_message`, `additional_message_required`, `additional_message_text`)
+- **DOCS**: `docs/API.md` — zaktualizowane przykłady GET/PUT dla nowych pól produktu
+
+---
+
 ## ver. 0.331 (2026-03-01) - Bugfix: strona produktu używała layoutu kategorii zamiast domyślnego
 
 - **FIX**: `LayoutsRepository::getProductLayout()` — fallback gdy produkt i jego kategorie nie mają przypisanego layoutu zmieniany z `categories_default = 1` na `status = 1`; wcześniej produkty bez layoutu pobierały szablon "Podstrony - kategorie" zamiast właściwego domyślnego
diff --git a/docs/TESTING.md b/docs/TESTING.md
index 2b56703..54958fd 100644
--- a/docs/TESTING.md
+++ b/docs/TESTING.md
@@ -23,10 +23,10 @@ composer test              # standard
 ## Aktualny stan
 
 ```text
-OK (805 tests, 2253 assertions)
+OK (807 tests, 2258 assertions)
 ```
 
-Zweryfikowano: 2026-02-24 (ver. 0.318)
+Zweryfikowano: 2026-03-01 (ver. 0.332)
 
 ## Konfiguracja