Hello,
I’m starting my migration process and I did migrate one contact but I would like to undo that. Is that possible ? I was a bite to quick on this action 
Thanks,
Amélie
Hey Amelie! Good question. It is possible to delete the customer/company.
If you select the wrong customer to set up a company for, or want to remove a company, then you can delete the company from B2B. Deleting a company also deletes that company’s location, and removes the customer’s association with the company. If you’ve added past customer orders to a company, then that company can’t be deleted. I think you’ll find this help doc useful as well!