AUTH_OPEN_ID_HAS_BEEN_BOUND
Error Cause
OpenId has been bound to an account, this WeChat openId is already bound to another account.
Solutions
- Login directly with the bound account
- Check if the same WeChat account is being bound repeatedly
- If you need to change binding, unbind existing association first
- Confirm if WeChat account information is correct
- Contact technical support to handle account binding issues