把数据同步到带分录单据中，单据头成功，单据体无数据。

json信息如下，请指教，谢谢。FEntity是单据体唯一标识，表名是其他的。
{
"NeedUpDateFields":[
""
],
"Model":{
"FID":"",
"FBillNo":"HT0001",
"F_CW_HTMC":"测试合同",
"F_CW_HTLX":{
"FNumber":"HTLX0001"
},
"F_CW_KH":{
"FNumber":"000001"
},
"F_CW_XS":{
"FNumber":"000001"
},
"F_CW_HTJE":500000,
"F_CW_QDRQ":"2016-02-24T15:43:52.7095448+08:00",
"F_CW_KSRQ":"2016-02-24T15:43:52.7095448+08:00",
"F_CW_JSRQ":"2016-03-02T15:43:52.7095448+08:00",
"F_CW_JJST":{
"FNumber":"001"
},
"F_CW_DQ":{
"FNumber":"GSD0001"
},
"F_CW_JSFS":{
"FNumber":"PayType0002"
},
"F_CW_BZ":"备注",
"FEntity":[
{
"FEntryID":132144,
"F_CW_FKQS":1,
"F_CW_FKJE":20000,
"F_CW_SFKKP":true,
"F_CW_JHKPRQ":"2016-02-21T15:43:52.7065406+08:00",
"F_CW_SJKPRQ":"2016-02-22T15:43:52.7055409+08:00",
"F_CW_SJFKRQ":"2016-02-24T15:43:52.7065406+08:00",
"F_CW_FKTJ":"以后再说",
"F_CW_FPLX":{
"FNumber":""
}
}
],
"FDocumentStatus":"C"
}
}