### Product Card Developer ### Page https://qa-developerstudio.fiserv.com/product/CardDeveloper/apis?branch=active ### Description **Defect seen on**: [Delete cardholder account details v2](https://qa-developerstudio.fiserv.com/product/CardDeveloper/api/post/v2/cards/accounts/associations/unassociate?branch=active&version=specs) , [Search cardholder account details v2](https://qa-developerstudio.fiserv.com/product/CardDeveloper/api/post/v2/cards/accounts/search?branch=active&version=specs), [Update cardholder account details v2](https://qa-developerstudio.fiserv.com/product/CardDeveloper/api/patch/v2/cards/accounts/associations?branch=active), and [Card stock and expiration date v1](https://qa-developerstudio.fiserv.com/product/CardDeveloper/api/patch/v1/cards/cardStockAndExpiration?branch=active&version=specs) The highlighted response code buttons in the screenshots below lead the user to a 503 error: <img width="1903" height="915" alt="Image" src="https://github.com/user-attachments/assets/62a138b1-f290-4920-bd5f-6564f2a46437" /> --- _[Delete cardholder account details v2](https://qa-developerstudio.fiserv.com/product/CardDeveloper/api/post/v2/cards/accounts/associations/unassociate?branch=active&version=specs):_ <img width="1904" height="911" alt="Image" src="https://github.com/user-attachments/assets/e8bf80fb-ddb0-4ee9-9f27-1ef71e6d1831" /> --- _[Search cardholder account details v2](https://qa-developerstudio.fiserv.com/product/CardDeveloper/api/post/v2/cards/accounts/search?branch=active&version=specs):_ <img width="1901" height="907" alt="Image" src="https://github.com/user-attachments/assets/b6d4a374-ae0b-4030-983f-94759f1d573a" /> --- _[Update cardholder account details v2](https://qa-developerstudio.fiserv.com/product/CardDeveloper/api/patch/v2/cards/accounts/associations?branch=active):_ <img width="1936" height="915" alt="Image" src="https://github.com/user-attachments/assets/10ee1564-9d96-46d8-907c-8c77901a1b13" /> --- _[Card stock and expiration date v1](https://qa-developerstudio.fiserv.com/product/CardDeveloper/api/patch/v1/cards/cardStockAndExpiration?branch=active&version=specs):_ <img width="1906" height="903" alt="Image" src="https://github.com/user-attachments/assets/9d7007e3-bd91-4a3f-a84b-df6c7eb5a264" /> ### Browser Fiserv Enterprise Browser Version 1.82.23 Chromium: 143.0.7499.193