Error Updating Lead Owner?

Question

This is a really odd error, and I'm not quite sure what's going on.
The premise is this: When a Lead's Owner changes, we want to change all Leads of that Company and Line of Business to the same owner.
My code works, somewhat.
It works fine unless there are more than 10 Leads at the same company with the same opportunity type. This is because the default page size for queries is 10. When I change the page size(to anything), I get the following error:
System.Web.Services.Protocols.SoapException: Error while processing argument urn:/crmondemand/xml/lead:ListOfLead for operation LeadUpdate(SBL-EAI-04316)
Here is the update portion of the code:
Lead.LeadWS_LeadUpdate_Input lui = new Lead.LeadWS_LeadUpdate_Input();
Lead.LeadWS_LeadUpdate_Output luo;
lui.ListOfLead = new Lead.Lead1[LeadIDs.Count];
for (int j = 0; j < lui.ListOfLead.Length; j++)
lui.ListOfLead[j] = new Lead.Lead1();
lui.ListOfLead[j].LeadId = LeadIDs[j];
lui.ListOfLead[j].OwnerId = CommonOwnerID;
luo = LeadRef.LeadUpdate(lui);
Note: the Lead.cs file has a namespace of Lead(this is avoid duplicate code for our web services package that I'm writing. Several proxy classes contain similar code under the same names.
Note that LeadIDs is a List<string> that, through the query stores each Lead ID returned.
LeadRef is the Lead.Lead object with the correct URL
Any thoughts?

Answer 1

Hi user635035!
I've the same limitation problem than you when I try to process (update) my User list (500 users and growing!)...please, could you so kindly to write me a few lines about how do you "step through" the whole list 10 (or 20... taking advantage of the limitation!) at a time?
I'm currently developing in C#
Your help would be very apreciated!
Thanks in advance!
Noël