CommunicationException when getLeadChanges with batch size 500

[Anonymous]

Hi all,

I'm using SOAP APIs to get ActivityRecord data very well with API 'getLeadChanges' using 500 as batch size.

But since last month, I often meet exceptions when getting Activity data. And when I change the batch size to be half (250), it works.The exception is as following:It seems that the Marketo server closes this request.Any suggestion is expected for that batch size 500 (or larger) could work.Thanks,Biao

[Kenny_Elkington]

How long is the request running before the exception and what does the XML of your call look like?

[Anonymous]

Hi Kenny,

There is not too much time before exception, far less than timeout setting.

I could not see the raw XML of request/response. I'm using the SOAP APIs coding by Visual Studio automatically, with StreamPosition of oldestCreatedAt = '2015-04-07T00:00:00Z' and latestCreatedAt = '2015-05-07T00:00:00Z', and ActivityTypeFilter.includeTypes = ['Click Link','Visit Webpage','Interesting Moment','Open Email','Email Bounced Soft','Fill Out Form','Unsubscribe Email','Click Email'].

I think the request XML is valid because it works well for most data.

Thanks,

Biao