Creating a Payment Vendor using Restlet

I am trying to post a payment to the vendor bill using restlet.
I have done this so far. However, I am getting Invalid Field value no matter what I try . Also, how can I apply the payment to particular item.

 function _post(context) {    var vendorBillPayment = record.create({  type: record.Type.VENDOR_PAYMENT,  isDynamic: false,  defaultValues:{  entity: 929 // vendor id  }  })      vendorBillPayment.setValue({  fieldId: 'account',  value: "129" &amp;lt;----------------------- <span style="text-decoration:underline"><strong>Error here . Tried different account, subsidery.and checked permission. Tried passing integer using format and as string. Still same issue.</strong></span>  })  vendorBillPayment.setValue({  fieldId: 'currency',  value: 1  })  vendorBillPayment.setValue({  fieldId: 'custbody_random_account_pay',  value: 6  })      vendorBillPayment.setValue({  fieldId: 'customform',  value: 154  })    vendorBillPayment.setValue({  fieldId: 'exchangerate',  value: "1.00"  })    var recordId = vendorBillPayment.save();  }