I know I am doing something silly but I cannot figure it out. I am initializing the vendorBill from a purchase order. I am not manipulating anything, just initializing and then doing an add.

The soap response is:
ERROR: INVALID_LIST_ID - You must specify a valid line ID.  Please set orderLine

   <?xml version="1.0" encoding="utf-8" ?>   - <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">  - <soap:Header>  - <preferences xmlns="urn:messages_2_6.platform.webservices.netsuite.com">    <disableSystemNotesForCustomFields>false</disableSystemNotesForCustomFields>     <ignoreReadOnlyFields>true</ignoreReadOnlyFields>     </preferences>    </soap:Header>  - <soap:Body>  - <add xmlns="urn:messages_2_6.platform.webservices.netsuite.com">  - <record xsi:type="q1:VendorBill" externalId="vb10020z647574" xmlns:q1="urn:purchases_2_6.transactions.webservices.netsuite.com">    <q1:createdDate>2007-09-26T18:31:00-05:00</q1:createdDate>     <q1:lastModifiedDate>2007-10-12T12:20:00-05:00</q1:lastModifiedDate>   - <q1:customForm internalId="106">    <name xmlns="urn:core_2_6.platform.webservices.netsuite.com">CT-Vendor Bill</name>     </q1:customForm>  - <q1:account internalId="117">    <name xmlns="urn:core_2_6.platform.webservices.netsuite.com">2000 Accounts Payable</name>     </q1:account>  - <q1:entity internalId="21">    <name xmlns="urn:core_2_6.platform.webservices.netsuite.com">10020 Vickerman</name>     </q1:entity>  - <q1:postingPeriod internalId="15">    <name xmlns="urn:core_2_6.platform.webservices.netsuite.com">Oct 2007</name>     </q1:postingPeriod>    <q1:tranDate>2007-09-26T00:00:00</q1:tranDate>   - <q1:terms internalId="2">    <name xmlns="urn:core_2_6.platform.webservices.netsuite.com">Net 30</name>     </q1:terms>    <q1:dueDate>2007-11-11T02:00:00-06:00</q1:dueDate>     <q1:tranId>647574</q1:tranId>     <q1:userTotal>719.46</q1:userTotal>     <q1:discountAmount>0</q1:discountAmount>     <q1:memo>Bill's Test</q1:memo>   - <q1:itemList>  - <q1:item>  - <q1:item internalId="1213">    <name xmlns="urn:core_2_6.platform.webservices.netsuite.com">17659 Box of 2: 9' x 20" Crystal White Garland, Pre Lit, Clear</name>     </q1:item>    <q1:line>1</q1:line>     <q1:orderLine>1</q1:orderLine>     <q1:quantity>4</q1:quantity>   - <q1:units internalId="1">    <name xmlns="urn:core_2_6.platform.webservices.netsuite.com">Box of 1</name>     </q1:units>    <q1:rate>41.27</q1:rate>     <q1:amount>165.08</q1:amount>