NAV exceptions are logged in the Dynamics Connector when running the Account to NAV Customer Card map

When running the Account to NAV Customer Card map in the Dynamics NAV Adapter, the following error occurs:

[Account to NAV Customer Card] has encountered an error while processing key [551d5211-b925-e011-9c0e-00155d430600]. Exception occurred in Microsoft Dynamics NAV

1: If the Microsoft Dynamics CRM Contact contains another Contact as the Parent Customer, this scenario is not supported in Microsoft Dynamics NAV.

2: If an order is canceled in Microsoft Dynamics CRM, the associated sales order in Microsoft Dynamics NAV is not updated because there is no "canceled" status.

Additionally, the following error is logged if tracing is enabled on the Integration Service:

WARNING TID:TP-5 [2011-01-21T16:51:35.1340078-06:00]: [Account to NAV Customer Card] has encountered an error while processing key [2a6f8576-b025-e011-9c0e-00155d430600]. Exception occurred in Microsoft Dynamics NAV

                --- Exception Dump ---
                Caught Exception: Exception occurred in Microsoft Dynamics NAV
                Stack trace:
   at Microsoft.Dynamics.Integration.Adapters.Nav2009.NavObjectProvider.WriteObject(Object value)
   at Microsoft.Dynamics.Integration.AdapterAbstractionLayer.MixedObjectProviderProxy.WriteObject(Object value)
   at Microsoft.Dynamics.Integration.Service.RecordRetryThread.Run(Object task)
                Inner Exception: Sequence contains more than one matching element
                Stack trace:
   at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source, Func`2 predicate)
   at Microsoft.Dynamics.Integration.Adapters.Nav2009.CustomerObjectProvider.WriteDynamicObject(Object value)
   at Microsoft.Dynamics.Integration.Adapters.Nav2009.NavObjectProvider.WriteObject(Object value)