SharePoint 2010 Error: Document ID Not Set

Had an issue on a client machine where although Document IDs were enabled on the site collection, no IDs were being applied to the uploaded files.

SharePoint assigns these IDs as part of a timer job that runs in Central Administration. To fix this you will need to run the following two jobs:

Document ID enable/disable job

and

Document ID assignment job

for each site collection where this is not working. You can view the timer jobs in Central admin from this page:

/_admin/ScheduledTimerJobs.aspx

Hope that helps!