The following is an example of createVendorBill where we are setting every possible field (See 

 for the available fields). The response will return the exact request data plus the new NetSuite Vendor Bill Id (internalId) and the newly created Salesforce Vendor Bill Id (salesforceID).

//  Create a Map to store all the data of a Vendor Bill
Map<String, Object> nsVendorBill = new Map<String, Object>();
nsVendorBill.put('classification', new Map<String, Object>{'internalId'=>'5'});
nsVendorBill.put('currencyRecord', new Map<String, Object>{'internalId'=>'1'});
nsVendorBill.put('department', new Map<String, Object>{'internalId'=>'2'});
nsVendorBill.put('dueDate', DateTime.newInstance(2020, 12, 31).getTime()/1000);
nsVendorBill.put('entity', new Map<String, Object>{'internalId'=>'30440'});
nsVendorBill.put('shipTo', new Map<String, Object>{'internalId'=>'362'});
nsVendorBill.put('memo', 'Bill 12');
nsVendorBill.put('otherRefNum', '4343399');
nsVendorBill.put('tranDate', DateTime.newInstance(2020, 09, 07).getTime()/1000);

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Update

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Item

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