我在我的沙箱中测试了paypal.com提供的masspay php sdk。但是当我试图支付我的沙盒测试账号时，它给我一个错误。这是来自paypal server的回复。任何人都帮我解决这个问题？
TIMESTAMP: 2011-08-16T17:25:06Z
CORRELATIONID: 112ecb6997405
ACK: Failure
VERSION: 65.1
BUILD: 2055089
L_ERRORCODE0: 10301
L_SHORTMESSAGE0: User not allowed
L_LONGMESSAGE0: The user is not allowed to send money through Mass Pay
L_SEVERITYCODE0: Error
答案 0 :(得分：2)