Trying to configure Azure Active Directory Sync Tool for first time - "There is no such object on the server."

We are trying to set up WAAD Sync Tool Configuration Wizard - and when we get to the 'configuration' step we get an Error of 'There is no such object on the server."

When I work with our AD team, they believe it's because we do not have an cn=users container.  We removed it and have an OU=users instead.

Any way to change where it wants to create the AAD_xxxxxxxxx or MSOL_xxxxxxxxx account?

Here's the error from EV:

Log Name:      Application
Source:        Directory Synchronization
Date:          11/19/2014 10:26:50 AM
Event ID:      0
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      blah
Description:
System.Management.Automation.CmdletInvocationException: There is no such object on the server.
 ---> System.DirectoryServices.DirectoryServicesCOMException: There is no such object on the server.

   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.get_IsContainer()
   at System.DirectoryServices.DirectoryEntries.CheckIsContainer()
   at Microsoft.Online.DirSync.Common.DirectoryServicesAdapter.DirectoryEntries.Add(String name, String schemaClassName)
   at Microsoft.Online.Coexistence.PS.Config.SetCoexistenceConfiguration.ActiveDirectoryCredential(PSCredential sourceDirectory, String tenantDomainName, String& userNameADMA, String& passwordADMA)
   at Microsoft.Online.Coexistence.PS.Config.SetCoexistenceConfiguration.ConfigureServerConfiguration()
   at Microsoft.Online.Coexistence.PS.Config.SetCoexistenceConfiguration.ProcessRecord()
   at System.Management.Automation.CommandProcessor.ProcessRecord()
   --- End of inner exception stack trace ---
   at System.Management.Automation.Runspaces.PipelineBase.Invoke(IEnumerable input)
   at System.Management.Automation.Runspaces.Pipeline.Invoke()
   at Microsoft.Online.DirSync.PowerShellAdapter.PowerShellCommand.ExecuteCommand(Command command, Boolean refreshPath)
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Directory Synchronization" />
    <EventID Qualifiers="0">0</EventID>
    <Level>2</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-11-19T17:26:50.000000000Z" />
    <EventRecordID>227880</EventRecordID>
    <Channel>Application</Channel>
    <Computer>blah</Computer>
    <Security />
  </System>
  <EventData>
    <Data>System.Management.Automation.CmdletInvocationException: There is no such object on the server.
 ---&gt; System.DirectoryServices.DirectoryServicesCOMException: There is no such object on the server.

   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.get_IsContainer()
   at System.DirectoryServices.DirectoryEntries.CheckIsContainer()
   at Microsoft.Online.DirSync.Common.DirectoryServicesAdapter.DirectoryEntries.Add(String name, String schemaClassName)
   at Microsoft.Online.Coexistence.PS.Config.SetCoexistenceConfiguration.ActiveDirectoryCredential(PSCredential sourceDirectory, String tenantDomainName, String&amp; userNameADMA, String&amp; passwordADMA)
   at Microsoft.Online.Coexistence.PS.Config.SetCoexistenceConfiguration.ConfigureServerConfiguration()
   at Microsoft.Online.Coexistence.PS.Config.SetCoexistenceConfiguration.ProcessRecord()
   at System.Management.Automation.CommandProcessor.ProcessRecord()
   --- End of inner exception stack trace ---
   at System.Management.Automation.Runspaces.PipelineBase.Invoke(IEnumerable input)
   at System.Management.Automation.Runspaces.Pipeline.Invoke()
   at Microsoft.Online.DirSync.PowerShellAdapter.PowerShellCommand.ExecuteCommand(Command command, Boolean refreshPath)</Data>
  </EventData>
</Event>

thanks