A free mod for Mount & Blade II: Bannerlord, by hunharibo.

Caravans Give XP is an addon that provides additional trade experience (XP) to the player when the player is traveling in a caravan. It works on both campaign events and player-made journeys.

This mod is safe to install and use during a campaign, as it does not save anything to the savegame files.

The mod works by simply adding a new campaign behavior. On every campaign event, it adds trade experience equal to 30% of the sum worth of the transaction. It gives this XP both to the caravan leader and the main hero.