Can you guarantee that the fees fit into my CoS (Cost of Sale) goal?

We do not guarantee this. However, our fees fit into the CoS goal for the majority of our stores.

If you have a low volume in your store this gets trickier. Rule of thumb: Set a CoS-goal that's the same, slighlty higher or slightly lower than your historic CoS. And preferably set a budget that's higher than your historic spend. This will help our AI to reach your goals quicker.