Return Code List

The API may return the following codes upon invocation. You can refer to these codes.

Code	Description
0	Success
1	Payment exception
8000	Parameter validation error
8003	content-type must be application/json
8004	Request parameter format error, must be JSON
8007	Signature error
8011	Duplicate payment order number
8012	Invalid IP address
8029	Merchant payment order number does not exist