The easiest way to create a dashboard for Sharetribe is to connect your Sharetribe marketplace Lemonado. The best thing is that it takes a few clicks.

Easily extract data from privateData, protectedData and publicData and use it across Lemonado

In Lemonado you can easily keep track of what new users has created listings. It's simple, just create a table widget viewing users and add a column that shows number of transactions via the related fields.