Cockpit - Monitored Products
Product Dashboard - Turn on Salesrank setting
On the right side of each monitored product, you can click on the details button to go to the respective product dashboard. There you can select "Salesrank" within the settings to see its trend further below.
24 Hour Update Cycles
The sales rank is crawled every 24 hours by Sellics. Amazon updates BSRs every hour, so there will usually be certain differences compared to the tool.
Only Sales Ranks in Main Product Categories
As detailed in this article, if Sellics is not showing any BSR, it's generally because Amazon is not showing any BSR in a main category.