付款申请单生成付款申请单

描述: 新建付款申请单 选往来信息为其他 用自定义流程生成付款申请单
报如下错误：
Caused by: java.lang.IllegalArgumentException: id is null or length is 0. 'null'
at com.kingdee.bos.util.BOSUuid.read(BOSUuid.java:142)
at com.kingdee.eas.fi.ap.app.PayRequestBillControllerBean.setDefaultValue(PayRequestBillControllerBean.java:902)
at com.kingdee.eas.fi.ap.app.PayRequestBillControllerBean._handleAfterTransform(PayRequestBillControllerBean.java:746)
at com.kingdee.eas.framework.app.AbstractCoreBillBaseControllerBean.handleAfterTransform(AbstractCoreBillBaseControllerBean.java:720)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.kingdee.bos.transaction.EJBTxFacade.TxInvokerBean.invoke(TxInvokerBean.java:125)

需要定义往来户ID