Hi everyone, we recently installed project server 2010 in our existing exchange 2010 sp1 and sharepoint 2010 environment. We did manage to sync tasks from project server to exchange using this guidelines: http://technet.microsoft.com/en-us/library/ff468700.aspx so if i create a task on project server it is replicated through exchange cas and shown in the outlook client,if i change the task in project the change is replicated too. if i change the task in outlook the exchange cas tries to update it on project server but fails and the following Warning is logged in the application event log of the exchange cas: Log Name: Application Source: MSExchange Web Services Date: 29.09.2010 17:20:32 Event ID: 6 Task Category: Core Level: Warning Keywords: Classic User: N/A Computer: ExchangeCas Description: A notification for subscription [EgBzcnZleGNhczAxLmF0aC5pbnQQAAAAdWr9ZArqR0Ov2PT5nYISTsKbmJL8Lc0I] against endpoint [http://sharepoint.domain.local/PWA/_vti_bin/PSI/ExchangeSync.asmx] couldn't be sent. (Send attempts: 7) Details: WebException: The remote server returned an error: (401) Unauthorized. StatusCode: Unauthorized Unauthorized at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult) at Microsoft.Exchange.Services.Core.NotificationServiceClient.HandleResponse(IAsyncResult responseAsyncResult) Event Xml: <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event"> <System> <Provider Name="MSExchange Web Services" /> <EventID Qualifiers="32768">6</EventID> <Level>3</Level> <Task>1</Task> <Keywords>0x80000000000000</Keywords> <TimeCreated SystemTime="2010-09-29T15:20:32.000000000Z" /> <EventRecordID>45271</EventRecordID> <Channel>Application</Channel> <Computer>ExchangeCas</Computer> <Security /> </System> <EventData> <Data>EgBzcnZleGNhczAxLmF0aC5pbnQQAAAAdWr9ZArqR0Ov2PT5nYISTsKbmJL8Lc0I</Data> <Data>http://sharepoint.domain.local/PWA/_vti_bin/PSI/ExchangeSync.asmx</Data> <Data>7</Data> <Data>WebException: The remote server returned an error: (401) Unauthorized. StatusCode: Unauthorized Unauthorized at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult) at Microsoft.Exchange.Services.Core.NotificationServiceClient.HandleResponse(IAsyncResult responseAsyncResult)</Data> </EventData> </Event> I did search for the ExchangeSync.asmx file on the Sharepoint and Project Servers but didnt find it anywhere. thanks for your help, regards tom

On Wed, 29 Sep 2010 15:28:48 +0000, thomas.torggler wrote: >we recently installed project server 2010 in our existing exchange 2010 sp1 and sharepoint 2010 environment. We did manage to sync tasks from project server to exchange using this guidelines: http://technet.microsoft.com/en-us/library/ff468700.aspx > >so if i create a task on project server it is replicated through exchange cas and shown in the outlook client,if i change the task in project the change is replicated too. if i change the task in outlook the exchange cas tries to update it on project server but fails and the following Warning is logged in the application event log of the exchange cas: Log Name: Application [ snip ] > <Data>WebException: The remote server returned an error: (401) Unauthorized. StatusCode: Unauthorized Unauthorized at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult) > at Microsoft.Exchange.Services.Core.NotificationServiceClient.HandleResponse(IAsyncResult responseAsyncResult)</Data> > </EventData> ></Event> > >I did search for the ExchangeSync.asmx file on the Sharepoint and Project Servers but didnt find it anywhere. The 401 status means that whatever the CAS is using for credentials isn't acceptable. You should be seeing errors in the IIS log on sharepoint. --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

Rich, thank you for your answer, sorry for my delay! i do see 401 Errors in the IIS log too, but unfortunatelly they dont really help me out. exchange cas tries to authenticate using its samaccountname (domain\computername$) and always gets: 401 unauthorized. any idea? thanks!

On Mon, 4 Oct 2010 16:40:39 +0000, thomas.torggler wrote: > > >Rich, > >thank you for your answer, sorry for my delay! > >i do see 401 Errors in the IIS log too, but unfortunatelly they dont really help me out. > >exchange cas tries to authenticate using its samaccountname (domain\computername$) and always gets: 401 unauthorized. Authorize that account to access the URL (or file) on the Sharepoint machine. Or use "Exchange Enterprise Servers" group in the local domain to allow access to the resource. --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

Thanks for your answer. I checked that and it works now. In the meantime I started a Ticket with MS Support, if I have news or future Problems I gonna post them here. thanks for your time!

I have the same problem, and i cant find a solution. My error on exchange look like this: A notification for subscription [HABhYXJleGNudDAxLm1pbmR3b3JraW5nLmxvY2FsEAAAAP1wMdduwSZGqAKgirqSbLkMbPp5OWDNCA==] against endpoint [http://aarspsnt01/PWA/_vti_bin/PSI/ExchangeSync.asmx] couldn't be sent. (Send attempts: 5) Details: WebException: The remote server returned an error: (500) Internal Server Error. StatusCode: InternalServerError Internal Server Error at System.Net.HttpWebRequest.EndGetResponse(IAsyncResult asyncResult) at Microsoft.Exchange.Services.Core.NotificationServiceClient.HandleResponse(IAsyncResult responseAsyncResult) Sharepoint server: Contoso\AARSPSNT01 Exchange CAS server: Contoso\AARCASNT01 Can you help me?

I have the sam error (500). The exchangesync.asmx is not exist in the path. I have no solution. I have a green installation, but only sync from project to outlook, but not from outlook to project. Microsoft need beta tester! Exists a solution of this problem?