diff --git a/src/Mapper/PostingApiToEntityMapper.php b/src/Mapper/PostingApiToEntityMapper.php
index 6dfe30d..a2e8592 100644
--- a/src/Mapper/PostingApiToEntityMapper.php
+++ b/src/Mapper/PostingApiToEntityMapper.php
@@ -46,7 +46,7 @@ class PostingApiToEntityMapper implements MapperInterface
                 MicroMapperInterface::MAX_DEPTH => 1,
             ]);
             if ($dto->product === null) {
-                throw new \Exception('Partner missing');
+                throw new \Exception('Product missing');
             }
             $product = $this->microMapper->map($dto->product, Product::class, [
                 MicroMapperInterface::MAX_DEPTH => 1,