||To start profile synchronization in SharePoint 2010|
On the Central Administration Web site, in the Application Management section, click Manage service applications.
On the Manage Service Applications page, click the User Profile service application name.
On the Manage Profile Service page, in the Synchronization section, click Start Profile Synchronization.
On the Start Profile Synchronization page, select Start Full Synchronization if this is the first time that you are synchronizing or if you have added or modified any synchronization connections or property mappings since the last time that you synchronized. Select Start Incremental Synchronization to synchronize only information that has changed since the last time that you synchronized.
Click OK. The Manage Profile Service page is displayed.
If you intend to enable the My Site cleanup timer job, complete these additional steps before you enable the job:
Run profile synchronization again as described in this section.
After the second profile synchronization completes, on the Central Administration Web site, in the Application Management section, click Manage service applications.
Click the User Profile Service Application name, and then click Manage User Profiles.
On the Manage Profile Service page, in the People section, click Manage User Profiles.
Next to View, select Profiles Missing from Import.
In the Find Profiles box, type the domain for the profiles, and then click Find.
For each profile that is returned, check the originating directory service, such as Active Directory, for the status of that profile. If the status of any of the returned profiles in the directory is not disabled or is not deleted, do not enable the My Site cleanup timer job. Contact Microsoft support for more assistance. Otherwise, enable the My Site cleanup timer job. For information about the Windows PowerShell cmdlets that you use to enable and disable this timer job.
A full synchronization can take a long time. If you refresh the Manage Profile Service page, you will see the progress of the synchronization job on the right side of the page. Be aware that profile synchronization consists of several stages, and the profiles will not be imported immediately. The Manage Profile Service page is not refreshed automatically as synchronization progresses.
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