Rebuilding the index refreshes the popularity of items in the Ariba Buyer product catalog. Ariba Buyer records each time an item is ordered by users and it uses this information to rate item relevance in search results. If you are not rebuilding your index periodically for other reasons, you should do so to refresh the relevance.

Ariba Buyer maintains relevance for items even when a new version of a supplier catalog is imported. So highly popular continue to list as highly popular after loading a new catalog version.

1. Review the current system index status. Do not start a rebuild when a rebuild is currently running.
2. Review the guidelines under Start Next Index Rebuild about when to rebuild the index or the state of the current rebuild. You cannot rebuild the index when a type definition file is enabled but not activated. Activate or disable the type before rebuilding the index.
3. Click Rebuild. A progress bar appears, indicating that the index is being rebuilt. This process can take several hours.