I can manually create the product from the apple connect dashboard in my in-app purchase tab. I want to use PHP and Symfony to add the product I have in my server created in the in-app purchase tab. I am using the second version create inapp purchase API https://developer.apple.com/documentation/appstoreconnectapi/create_an_in-app_purchase but i get the Conflict 409 message while i am posting it. i only have one other product and i am sure the id i am using for this new one is not being used before. i can get the list of inapp purchase for my app using this api https://developer.apple.com/documentation/appstoreconnectapi/list_all_in-app_purchases_for_an_app i created the token successfuly and i am checking the existance of a product with that product id beforehand and i get no result. here is a sample code. $productData = [ 'data' => [ 'type' => 'inAppPurchases', 'attributes' => [ 'name' => $package->getName(), 'productId' => '34567876545678test', 'inAppPurchaseType' => 'CONSUMABLE', 'state' => 'READY_TO_SUBMIT', 'reviewNote' => $description, 'familySharable' => false ] ] ]; $response = $this->client->request('POST', 'v2/inAppPurchases', [ 'headers' => [ 'Authorization' => "Bearer $token", 'Content-Type' => 'application/json' ], 'json' => $productData ]);