Error - cannot set AssetState when calling Webservice (API Servlet)!

Error - cannot set AssetState when calling Webservice (API Servlet)!

hi,
I'm using the servlet API to adding an asset, everything works fine but the AssetState value doesn't set correctly.

I want to set an asset to "In Use" state, but every time the webservice called, asset will be added in "In Store" state.

what value should I send to the web service for this reason? (a string like 'In Use' or its value like 2)
neither a number value (2) nor string value ('In Use') works correctly!!
what should I do??

I'm using SoapUI , Simple html form (from ServiceDesk API Servlet) and calling web service from .net or java and I cant understand what's wrong!

I'm using SoapUI application with these parameters :
<soapenv:Envelope xmlns:soapenv=" http://schemas.xmlsoap.org/soap/envelope/" xmlns:urn="urn:SampaAssetWSDL">
   <soapenv:Header/>
   <soapenv:Body>
      <urn:AssetStructure>
         <urn:assetName>TestAssetName_3</urn:assetName>
         <urn:assetType>TestAssetType_1</urn:assetType>
         <urn:productName>TestProductName_1</urn:productName>
         <urn:siteName>?</urn:siteName>
         <urn:resTag>?</urn:resTag>
         <urn:resSlNo>?</urn:resSlNo>
         <urn:barCode>222222</urn:barCode>
         <urn:location>?</urn:location>
         <urn:purchaseCost>?</urn:purchaseCost>
         <urn:vendor>111111</urn:vendor>
         <urn:acqDate>?</urn:acqDate>
         <urn:expiryDate>?</urn:expiryDate>
         <urn:warrantyExpDate>?</urn:warrantyExpDate>

         <urn:assetState>In Use</urn:assetState>

         <urn:assetToAssociate>?</urn:assetToAssociate>
         <urn:associateToUser>?</urn:associateToUser>
         <urn:associateToDepartment>?</urn:associateToDepartment>
         <urn:username>xxxxxxxxxxxx</urn:username>
         <urn:password>xxxxxxxxxxxxxxx</urn:password>
         <urn:DOMAIN_NAME>xxxxxxxxxxxxxx</urn:DOMAIN_NAME>
         <urn:logonDomainName>AD_AUTH</urn:logonDomainName>
      </urn:AssetStructure>
   </soapenv:Body>
</soapenv:Envelope>

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