Sales dropped to Zero after switching from an Individual to a Professional Account FBM

Hi all,

I recently started selling on Amazon Germany. I initially opened an Individual FBM (Fulfilled by Merchant) seller account and made four sales in the first week. As you may know, Individual sellers can’t configure their shipping settings, so Amazon automatically charged €3 per item—and the same for each additional item.

Encouraged by those early sales, I upgraded to a Professional seller account (€39.99/month in the EU). I lowered my product price by 30%, set up a flat-rate shipping fee of €3.95, offered free shipping for orders over €25, and even added a “buy five, get one free” promotion. But since making the switch, I haven’t had a single sale in two weeks.

I’ve been trying to figure out why Amazon seems to have stopped showing my listings. Despite offering better deals and having more seller tools as a Professional, visibility has dropped. Could it be that, since Amazon already collects the €39.99 monthly fee from me, there’s less incentive for them to promote my listings?

I’m really trying to understand how Amazon’s algorithm works. Today, I reduced my shipping cost to €3, but I doubt it will make much difference.

Should I consider switching back to an Individual account? I had planned to move to FBA soon, but now I’m unsure if that’s the right move. Any thoughts or advice would be greatly appreciated. Thank you in advance