Amazon’s automated mechanisms pull Global Marketplace(s) synchronization data from a variety of places.
It is rather more complicated than what I’m about to describe, depending on what previous actions an SoA Account has undertaken, but when you get back in, I’d first make sure that the “Allow Amazon to buy my products to sell globally” (link, Dashboard Editor) was set to disabled, and that “FBA Export” (link, Dashboard Editor, simplified) was as well.