Java CyberSource支付处理器错误：不支持的货币

我应该集成一个CyberSource支付网关： 我的请求数据：

request.put( "ccAuthService_run", "true" ); 
request.put( "ccCaptureService_run", "true" );
request.put( "merchantReferenceCode", "your_merchant_reference_code" );                  
request.put( "billTo_firstName", "John" );
request.put( "card_accountNumber", "4111111111111111" ); 
request.put( "card_expirationMonth", "12" ); 
request.put( "card_expirationYear", "2020" ); 
request.put( "purchaseTotals_currency", "USD" );  
request.put("purchaseTotals_grandTotalAmount", "100.00");

我总是得到以下错误响应：

decision=REJECT invalidField_0=purchaseTotals_currency     
ccAuthReply_avsCode=2 reasonCode=102    
merchantReferenceCode=your_merchant_reference_code 
invalidField_=purchaseTotals_currency

看起来我的商户ID没有配置有效的货币。请帮帮我