This task is meant to be performed by an IBM Link Index Provider (LDX) or IBM Lifecycle Query Engine (LQE) administrator whenever informed by the Windchill server administrator that OSLC Connect for Windchill has been upgraded and related datasources need to be reindexed. To accomplish this in LQE [1]:
http[s]://<host_name>:<port>/lqe/web/admin/data-sources
in a browser.
Reindex
link in the tool bar.