.

src/main/java/com/DecodEat/domain/products/repository/ProductRepository.java

@@ -30,7 +30,7 @@ Slice<Product> findCompletedProductsByCursor(@Param("cursorId") Long cursorId,
     Page<Product> findByUserId(Long userId, Pageable pageable);
 
     @Query(value = "SELECT p.product_id FROM product p JOIN user_behavior ub ON p.product_id = ub.product_id WHERE ub.user_id = :userId AND ub.behavior = :behavior ORDER BY RAND() LIMIT 1", nativeQuery = true)
-    Optional<Long> findRandomProductIdByUserIdAndBehavior(@Param("userId") Long userId, @Param("behavior") Behavior behavior);
+    Optional<Long> findRandomProductIdByUserIdAndBehavior(@Param("userId") Long userId, @Param("behavior") String behavior);
 
     @Query("SELECT pl.product FROM ProductLike pl WHERE pl.user.id = :userId")
     Page<Product> findLikedProductsByUserId(@Param("userId") Long userId, Pageable pageable);

src/main/java/com/DecodEat/domain/products/service/ProductService.java

@@ -245,7 +245,7 @@ public UserBasedRecommendationResponseDto getUserBasedRecommendation(User user)
 
         }
 
-        Long standardProductId = productRepository.findRandomProductIdByUserIdAndBehavior(userId,selectedBehavior)
+        Long standardProductId = productRepository.findRandomProductIdByUserIdAndBehavior(userId,selectedBehavior.name())
                 .orElseThrow(()-> new GeneralException(NO_USER_BEHAVIOR_EXISTED));
         Product standardProduct = productRepository.findById(standardProductId).orElseThrow(()->new GeneralException(NO_RESULT));