Can't find field data in Sharepoint list using SOAP - sharepoint

Question

I'm stuck trying to find some data in a Sharepoint list.
I have the list ID, using the List Service "GetList" method I can see that the field I'm looking for is attached to the list. When I try to use "GetListItems" the field isn't there.
I've been assuming that it means the field I want isn't in the default view, but even when I define the view fields explicitly or change the query, I still can't find the data. What should I do?
Here are some of the attempts I've made, none show the fields I'm looking for.
Method 1:
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:ns0="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Header/>
<ns0:Body>
<ns1:GetListItems>
<ns1:listName>{1A8A3DF2-E5D0-4DDE-B31A-CCC2FB7DA90F}</ns1:listName>
<viewFields>
<FieldRef Name="_ows_Title"/>
<FieldRef Name="_ows_Project_x0020_Description"/>
<FieldRef Name="_ows_Style_x0020_number_x0020_quantit"/>
<FieldRef Name="_ows_Requirement"/>
<FieldRef Name="_ows_First_x0020_order_x0020_entry_x0"/>
<FieldRef Name="_ows_MKT_x0020__x0025__x0020_Completi"/>
<FieldRef Name="_ows_MFG_x0020__x0025_Completion"/>
</viewFields>
<ns1:rowLimit>10</ns1:rowLimit>
</ns1:GetListItems>
</ns0:Body>
</SOAP-ENV:Envelope>
Method 2:
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:ns0="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Header/>
<ns0:Body>
<ns1:GetListItems>
<ns1:listName>{1A8A3DF2-E5D0-4DDE-B31A-CCC2FB7DA90F}</ns1:listName>
<viewFields>
<FieldRef Name="Title"/>
<FieldRef Name="Project_x0020_Description"/>
<FieldRef Name="Style_x0020_number_x0020_quantit"/>
<FieldRef Name="Requirement"/>
<FieldRef Name="First_x0020_order_x0020_entry_x0"/>
<FieldRef Name="MKT_x0020__x0025__x0020_Completi"/>
<FieldRef Name="MFG_x0020__x0025_Completion"/>
</viewFields>
<ns1:rowLimit>10</ns1:rowLimit>
</ns1:GetListItems>
</ns0:Body>
</SOAP-ENV:Envelope>
Method 3:
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:ns0="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Header/>
<ns0:Body>
<ns1:GetListItems>
<ns1:listName>{1A8A3DF2-E5D0-4DDE-B31A-CCC2FB7DA90F}</ns1:listName>
<Query>
<Where>
<Gt>
<FieldRef Name="ID"/>
<Value Type="Counter">0</Value>
</Gt>
</Where>
</Query>
<ns1:rowLimit>10</ns1:rowLimit>
</ns1:GetListItems>
</ns0:Body>
</SOAP-ENV:Envelope>
All three methods list all fields in the default view (ignoring my filters/query) but correctly limited to 10 results.

Answer 1

Your examples appear to be missing the outer <{namespace}:viewFields> node defined by the "http://schemas.microsoft.com/sharepoint/soap/" schema. (That or they're missing the inner <ViewFields> node in the body of the parameter.)
The name properties of the FieldRef nodes should be the internal names of the columns.
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:ns0="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
<SOAP-ENV:Header/>
<ns0:Body>
<ns1:GetListItems>
<ns1:listName>{1A8A3DF2-E5D0-4DDE-B31A-CCC2FB7DA90F}</ns1:listName>
<ns1:viewFields>
<ViewFields>
<FieldRef Name="Title"/>
<FieldRef Name="Project_x0020_Description"/>
<FieldRef Name="Style_x0020_number_x0020_quantit"/>
<FieldRef Name="Requirement"/>
<FieldRef Name="First_x0020_order_x0020_entry_x0"/>
<FieldRef Name="MKT_x0020__x0025__x0020_Completi"/>
<FieldRef Name="MFG_x0020__x0025_Completion"/>
</ViewFields>
</ns1:viewFields>
<ns1:rowLimit>10</ns1:rowLimit>
</ns1:GetListItems>
</ns0:Body>
</SOAP-ENV:Envelope>
Note that the response will include system columns (such as Title, ID, and Created/Modified) in the results, even if you didn't specify them in the ViewFields.