Hi,

We are seeing this API error being thrown many times for some of our
clients with
com.google.api.adwords.cm.AdGroupCriterionServiceSoapBindingStub.mutate()
API call while trying to update ad group criteria (keywords). We are
using Google Adwords v200909 API.

Please let us know what is the cause for this error.

Thanks,
semdev

Error Stacktrace:
-----------------
AxisFault
 faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server
 faultSubcode:
 faultString: DatabaseError.CONCURRENT_MODIFICATION @
 faultActor:
 faultNode:
 faultDetail:
        {https://adwords.google.com/api/adwords/cm/v200909}
ApiExceptionFault:<message>DatabaseError.CONCURRENT_MODIFICATION @ </
message><ApplicationException.Type>ApiException</
ApplicationException.Type><errors xmlns:xsi="http://www.w3.org/2001/
XMLSchema-instance" xsi:type="DatabaseError"><fieldPath/><trigger/
><ApiError.Type>DatabaseError</
ApiError.Type><reason>CONCURRENT_MODIFICATION</reason></errors>

DatabaseError.CONCURRENT_MODIFICATION @
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
        at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:
39)
        at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:
27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at java.lang.Class.newInstance0(Class.java:355)
        at java.lang.Class.newInstance(Class.java:308)
        at
org.apache.axis.encoding.ser.BeanDeserializer.<init>(BeanDeserializer.java:
104)
        at
org.apache.axis.encoding.ser.BeanDeserializer.<init>(BeanDeserializer.java:
90)
        at
com.google.api.adwords.cm.ApiException_Helper.getDeserializer(ApiException_Helper.java:
53)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at
org.apache.axis.encoding.ser.BaseDeserializerFactory.getSpecialized(BaseDeserializerFactory.java:
154)
        at
org.apache.axis.encoding.ser.BaseDeserializerFactory.getDeserializerAs(BaseDeserializerFactory.java:
84)
        at
org.apache.axis.encoding.DeserializationContext.getDeserializer(DeserializationContext.java:
464)
        at
org.apache.axis.encoding.DeserializationContext.getDeserializerForType(DeserializationContext.java:
547)
        at
org.apache.axis.message.SOAPFaultDetailsBuilder.onStartChild(SOAPFaultDetailsBuilder.java:
157)
        at
org.apache.axis.encoding.DeserializationContext.startElement(DeserializationContext.java:
1035)
        at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:
501)
        at
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:
400)
        at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl
$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2747)
        at
com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:
648)
        at
com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:
140)
        at
com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:
510)
        at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:
807)
        at
com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:
737)
        at
com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:
107)
        at
com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:
1205)
        at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl
$JAXPSAXParser.parse(SAXParserImpl.java:522)
        at javax.xml.parsers.SAXParser.parse(SAXParser.java:395)
        at
org.apache.axis.encoding.DeserializationContext.parse(DeserializationContext.java:
227)
        at org.apache.axis.SOAPPart.getAsSOAPEnvelope(SOAPPart.java:696)
        at org.apache.axis.Message.getSOAPEnvelope(Message.java:435)
        at
org.apache.axis.handlers.soap.MustUnderstandChecker.invoke(MustUnderstandChecker.java:
62)
        at org.apache.axis.client.AxisClient.invoke(AxisClient.java:206)
        at org.apache.axis.client.Call.invokeEngine(Call.java:2784)
        at org.apache.axis.client.Call.invoke(Call.java:2767)
        at org.apache.axis.client.Call.invoke(Call.java:2443)
        at org.apache.axis.client.Call.invoke(Call.java:2366)
        at org.apache.axis.client.Call.invoke(Call.java:1812)
        at
com.google.api.adwords.cm.AdGroupCriterionServiceSoapBindingStub.mutate(AdGroupCriterionServiceSoapBindingStub.java:
910)

-- 
=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~
Have you migrated to v200909 yet?
The v13 sunset is on April 22, 2010.

Also find us on our blog and discussion group:
http://adwordsapi.blogspot.com
http://groups.google.com/group/adwords-api
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