Payment Error-Code Lookup DB
This tool lets you look up common WeChat/Alipay payment error codes and messages. Enter an error code (e.g. 1011, C6, SYS_0001) or a message (e.g. "3-D Secure failed") to get the cause and step-by-step solution.
- Find out what payment errors mean and how to fix them.
- Supports both code numbers and English error messages.
- Includes official and community-sourced solutions.
Popular Error Examples
Card doesn’t support CNY transactions (error -1011)
🟩 WeChatLast verified: 2025-05-14
Why it happens: Bank blocks cross-border CNY e-commerce MCC 6540
Step-by-step fix:
- Call the bank and ask to enable CNY online purchases
- Retry the bind flow with a new SMS OTP
- If still blocked, try a different Visa/Mastercard that supports 3-D Secure 2.0
Transaction declined by issuer – code C6
🟦 AlipayLast verified: 2025-06-02
Why it happens: Issuing bank has not enabled overseas tokenisation
Step-by-step fix:
- Open your banking app and enable ‘Overseas e-commerce’
- Wait 10 min, then re-enter the card in Alipay > Cards > Add
- Use a UnionPay-branded card if available (works 90 % cases)
No matching error found.
Why Use This Tool?
Payment errors are a common frustration for travelers and expats using WeChat Pay or Alipay in China. Error codes and unclear messages can appear for many reasons:
- Card compatibility issues
- 3-D Secure or bank restrictions
- Risk controls or temporary system maintenance
How It Helps
- Quickly look up error codes (e.g. 1011, C6) or messages (e.g. "3-D Secure failed")
- Get clear explanations and step-by-step solutions
- Based on real user reports, official docs, and community feedback
Contribute & Stay Updated
- The database is updated regularly as new errors and fixes are found
- If you see an unknown error, contribute a screenshot to help others
FAQ
- What is this tool? — It helps you understand and fix common payment errors in WeChat Pay and Alipay.
- How do I use it? — Enter the error code or message you see in the app, and get a solution instantly.
- What if my error is not found? — Try a different keyword, or contribute a screenshot to help the community.