I am doing a SharePoint profile sync and got this error. What does the step MOSS_DELTAIMPORT even do? It looks like the step happens all the time. If this is skipped, will the Sync Service try it again? Is data lost or incomplete? I really have no idea how ForeFront works and all of this is through SharePoint. I am seeing this error, but everything worked before and everything looks like it is progressing. Please remember. I have no experience with ForeFront at all.