Someone wanted to learn this too, so Grasp built them a personal learning path.
You can keep exploring this one or create a path like this one shaped around you.
Recommended resources
Module 1
Foundations of Dutch E-commerce
Module 2
Product Discovery and Market Validation
Module 3
Sourcing, Logistics, and Profitability
Module 4
Dutch Business Registration and Legal Essentials
Module 5
Selling and Marketing on Bol.com
Module 6
Order Fulfillment and Customer Service
Module 7