Paddle Coupon Sync prüft nun zuerst, ob der Discount schon existiert.

app/Services/Paddle/PaddleDiscountService.php

@@ -17,6 +17,11 @@ class PaddleDiscountService
      */
     public function createDiscount(Coupon $coupon): array
     {
+        $existing = $this->findExistingDiscount($coupon->code);
+        if ($existing !== null) {
+            return $existing;
+        }
+
         $payload = $this->buildDiscountPayload($coupon);
 
         $response = $this->client->post('/discounts', $payload);
@@ -82,6 +87,35 @@ class PaddleDiscountService
         return Arr::get($response, 'data', $response);
     }
 
+    /**
+     * @return array<string, mixed>|null
+     */
+    protected function findExistingDiscount(?string $code): ?array
+    {
+        $normalized = Str::upper(trim((string) $code));
+        if ($normalized === '') {
+            return null;
+        }
+
+        $response = $this->client->get('/discounts', [
+            'code' => $normalized,
+            'per_page' => 1,
+        ]);
+
+        $items = Arr::get($response, 'data', []);
+        if (! is_array($items) || $items === []) {
+            return null;
+        }
+
+        $match = Collection::make($items)->first(static function ($item) use ($normalized) {
+            $codeValue = Str::upper((string) Arr::get($item, 'code', ''));
+
+            return $codeValue === $normalized ? $item : null;
+        });
+
+        return is_array($match) ? $match : null;
+    }
+
     /**
      * @return array<string, mixed>
      */