Vendor invoice entity

Element	Description	Default	Type	Mandatory
invnumber	Unique key identifying the invoice		TEXT	Yes
ordnumber	Order number		TEXT
status	OPEN, PAID, OVERDUE	OPEN
currency	Three character currency code	CHF	TEXT(3)
ap_accno	Accounts receivable account number	2000	TEXT
transdate	Invoice date		DATE	Yes
duedate			DATE
description	Invoice title		TEXT
notes			TEXT
intnotes	Internal notes usually not printed on the invoice		TEXT
taxincluded	Prices included taxes or not		BOOLEAN
department	Name of the department		Text
vendor			vendor entity	Yes
parts	List of part elements describing the invoice positions		part	Yes

Examples:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<payable>
  <invnumber>K-001</invnumber>
  <ordnumber></ordnumber>
  <status>OPEN</status>
  <currency>CHF</currency>
  <ap_accno>2000</ap_accno>
  <transdate>2013-07-30T00:00:00+02:00</transdate>
  <duedate>2013-08-13T00:00:00+02:00</duedate>
  <description></description>
  <notes></notes>
  <intnotes></intnotes>
  <taxincluded>true</taxincluded>
  <dcn></dcn>
  <amount>100.0</amount>
  <netamount>100.0</netamount>
  <paid>50.0</paid>
  <paymentAccno>1020</paymentAccno>
  <vendor>
    <id>10880</id>
    <vendornumber>L-66</vendornumber>
    <name>ABC Lieferant</name>
    <created>2013-01-01T00:00:00+01:00</created>
    <salutation>Herr</salutation>
    <firstname>Hans</firstname>
    <lastname>Muster</lastname>
    <terms>14</terms>
    <address1>Seestrasse 63</address1>
    <address2></address2>
    <zipcode>8000</zipcode>
    <city>Zürich</city>
    <state>Zürich</state>
    <country>Schweiz</country>
    <phone>044 000 00 01</phone>
    <fax></fax>
    <mobile></mobile>
    <email>hans.muster@abc.ch</email>
    <taxnumber></taxnumber>
    <arap_accno>2000</arap_accno>
    <payment_accno>1020</payment_accno>
    <bank_name>CREDIT SUISSE</bank_name>
    <bank_address1>PARADEPLATZ</bank_address1>
    <bank_address2></bank_address2>
    <bank_zipcode>8000</bank_zipcode>
    <bank_city>ZüRICH</bank_city>
    <bank_country></bank_country>
    <bank_iban>CH57 0483 5053 9150 6000 1</bank_iban>
    <bank_bic>CRESCHZZ81Z</bank_bic>
  </vendor>
  <parts>
    <part>
      <income_accno>3400</income_accno>
      <expense_accno>4999</expense_accno>
      <partnumber>ART-1</partnumber>
      <description>ART-1</description>
      <unit></unit>
      <quantity>1.0</quantity>
      <sellprice>200.0</sellprice>
      <discount>0.0</discount>
      <itemnote></itemnote>
      <tax_accnos>2201,2206</tax_accnos>
      <price_update>2012-01-01T00:00:00+01:00</price_update>
    </part>
  </parts>
</payable>

{
   "invnumber": "K-001",
   "ordnumber": "",
   "status": "OPEN",
   "currency": "CHF",
   "ap_accno": "2000",
   "transdate": "2013-07-30T00:00:00+02:00",
   "duedate": "2013-08-13T00:00:00+02:00",
   "description": "",
   "notes": "",
   "intnotes": "",
   "taxincluded": "true",
   "dcn": "",
   "amount": "100.0",
   "netamount": "100.0",
   "paid": "50.0",
   "paymentAccno": "1020",
   "vendor":
   {
       "id": "10880",
       "vendornumber": "L-66",
       "name": "ABC Lieferant",
       "created": "2013-01-01T00:00:00+01:00",
       "salutation": "Herr",
       "firstname": "Hans",
       "lastname": "Muster",
       "terms": "14",
       "address1": "Seestrasse 63",
       "address2": "",
       "zipcode": "8000",
       "city": "Zürich",
       "state": "Zürich",
       "country": "Schweiz",
       "phone": "044 000 00 01",
       "fax": "",
       "mobile": "",
       "email": "hans.muster@abc.ch",
       "taxnumber": "",
       "arap_accno": "2000",
       "payment_accno": "1020",
       "bank_name": "CREDIT SUISSE",
       "bank_address1": "PARADEPLATZ",
       "bank_address2": "",
       "bank_zipcode": "8000",
       "bank_city": "ZüRICH",
       "bank_country": "",
       "bank_iban": "CH57 0483 5053 9150 6000 1",
       "bank_bic": "CRESCHZZ81Z"
   },
   "parts":
   {
       "part":
       {
           "income_accno": "3400",
           "expense_accno": "4999",
           "partnumber": "ART-1",
           "description": "ART-1",
           "unit": "",
           "quantity": "1.0",
           "sellprice": "200.0",
           "discount": "0.0",
           "itemnote": "",
           "tax_accnos": "2201,2206",
           "price_update": "2012-01-01T00:00:00+01:00"
       }
   }
}