This is a background job that takes a snapshot of the inventory part unit cost for calculating inventory planning and replenishment data. The reason for this is that there might be a substantial performance loss if the normal methods for fetching inventory value were used. These methods have to consider a weighted value for parts that have FIFO/LIFO, or whether the Inventory Part Cost Level is anything else than inventory part. So in order to get relevant data in this snapshot there is a scheduled task running to update the snapshot.
You can either perform the refresh snapshot task directly (procedure A) or schedule the task as a background job (procedure B).
A. To perform the refresh snapshot task directly, use Refresh Inventory Part Unit Cost Snapshot assistant.
B. To schedule the refresh snapshot task as a background job, use Refresh Inventory Part Unit Cost Snapshot assistant and select the Schedule option from the Start Option section. Scheduled tasks can be seen in Database Task Schedule page.
There are no prerequisites for this activity.
The unit cost snapshot is saved on all inventory parts for a site.