<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Header>
<ns1:RequestHeader>
<ns1:clientCustomerId>xxx-xxx-xxxx</ns1:clientCustomerId>
<ns1:developerToken>MNTMFwDdvmrVJxxxxxxxx</ns1:developerToken>
<ns1:userAgent>Adword Account (AwApi-PHP/5.2.3, Common-PHP/5.2.3, PHP/5.4.7)</ns1:userAgent>
</ns1:RequestHeader>
</SOAP-ENV:Header>
<SOAP-ENV:Body>
<ns1:mutate>
<ns1:operations>
<ns1:operator>ADD</ns1:operator>
<ns1:operand>
<ns1:name>My Campaign 3</ns1:name>
<ns1:status>PAUSED</ns1:status>
<ns1:startDate>20140523</ns1:startDate>
<ns1:endDate>20140622</ns1:endDate>
<ns1:budget>
<ns1:budgetId>xxxxx</ns1:budgetId>
</ns1:budget>
<ns1:adServingOptimizationStatus>ROTATE</ns1:adServingOptimizationStatus>
<ns1:frequencyCap>
<ns1:impressions>5</ns1:impressions>
<ns1:timeUnit>DAY</ns1:timeUnit>
<ns1:level>ADGROUP</ns1:level>
</ns1:frequencyCap>
<ns1:settings xsi:type="ns1:KeywordMatchSetting">
<ns1:optIn>true</ns1:optIn>
</ns1:settings>
<ns1:settings xsi:type="ns1:DynamicSearchAdsSetting">
<ns1:languageCode>en</ns1:languageCode>
</ns1:settings>
<ns1:settings xsi:type="ns1:GeoTargetTypeSetting">
<ns1:positiveGeoTargetType>DONT_CARE</ns1:positiveGeoTargetType>
<ns1:negativeGeoTargetType>DONT_CARE</ns1:negativeGeoTargetType>
</ns1:settings>
<ns1:advertisingChannelType>SEARCH</ns1:advertisingChannelType>
<ns1:networkSetting>
<ns1:targetGoogleSearch>true</ns1:targetGoogleSearch>
<ns1:targetSearchNetwork>true</ns1:targetSearchNetwork>
<ns1:targetContentNetwork>true</ns1:targetContentNetwork>
<ns1:targetPartnerSearchNetwork>false</ns1:targetPartnerSearchNetwork>
</ns1:networkSetting>
<ns1:biddingStrategyConfiguration>
<ns1:biddingStrategyType>MANUAL_CPC</ns1:biddingStrategyType>
<ns1:biddingScheme xsi:type="ns1:ManualCpcBiddingScheme">
<ns1:enhancedCpcEnabled>false</ns1:enhancedCpcEnabled>
</ns1:biddingScheme>
</ns1:biddingStrategyConfiguration>
<ns1:displaySelect>false</ns1:displaySelect>
</ns1:operand>
</ns1:operations>
</ns1:mutate>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
<?xml version="1.0"?>
<soap:Header>
<requestId>0004f9fe15977b080a42db8900002b15</requestId>
<serviceName>CampaignService</serviceName>
<methodName>mutate</methodName>
<operations>1</operations>
<responseTime>348</responseTime>
</ResponseHeader>
</soap:Header>
<soap:Body>
<soap:Fault>
<faultcode>soap:Server</faultcode>
<faultstring>[CampaignError.CANNOT_UNSET_DISPLAY_SELECT_CAMPAIGN @ operations[0].operand.displaySelect]</faultstring>
<detail>
<message>[CampaignError.CANNOT_UNSET_DISPLAY_SELECT_CAMPAIGN @ operations[0].operand.displaySelect]</message>
<ApplicationException.Type>ApiException</ApplicationException.Type>
<fieldPath>operations[0].operand.displaySelect</fieldPath>
<trigger/>
<errorString>CampaignError.CANNOT_UNSET_DISPLAY_SELECT_CAMPAIGN</errorString>
<ApiError.Type>CampaignError</ApiError.Type>
<reason>UNKNOWN</reason>
</errors>
</ApiExceptionFault>
</detail>
</soap:Fault>
</soap:Body>
</soap:Envelope>
Please let me know what I am doing wrong and how to create "search network only" campaign through adwords api.
Thank you.