diff --git a/Haina/项目/支付中心/PayPal.md b/Haina/项目/支付中心/PayPal.md
index c84e078..255357a 100644
--- a/Haina/项目/支付中心/PayPal.md
+++ b/Haina/项目/支付中心/PayPal.md
@@ -67,6 +67,7 @@ cssclasses:
 - [Payment methods](https://developer.paypal.com/docs/checkout/payment-methods/)
 - [ACDC支持](https://developer.paypal.com/docs/checkout/advanced/eligibility/)
 - [测试卡](https://developer.paypal.com/tools/sandbox/card-testing/#link-testgeneratedcardnumbers)
+- [卡支付Declined具体原因 response_code](https://developer.paypal.com/docs/api/orders/v2/#definition-processor_response)
 
 ### 测试卡