What does a CD-Error 50 mean on Export?

Hi,

I have two Forests/Domains which FIM manages with no Trust between them.  In this case, FIM Exports from the Metaverse/Forest A into Forest B.  Its only a one-way operation.

On export, 2 groups fail export with a CD-Error 50 error.  These groups are Domain Local security groups in Forest A.

Can anyone plz point me to where I can find a CD-Error 50 explanation or advise on what this means?

Thanks in advance for the help.

Thanks for your help! SdeDot