What to expect in the first months: an honest projection rather than a promise
Anyone weighing up opening a shop on a platform wants to know one thing nobody can promise: how much they will sell. What can be done is to describe how results usually develop.
The first month almost always produces few orders or none, and that is not a negative signal. It follows from the fact that your products must meet the searches of those buying at that moment.
A practice orders consumables every six to eight weeks. Statistically, most of your potential customers are not buying anything in the week you open.
The first orders tend to arrive between the second and third month, are small, and on low-value items. That is the expected behaviour: they are the trial orders discussed elsewhere.
The signal that things are working is therefore not the number of orders, but repetition. A customer ordering a second time has completed the test and placed you among their suppliers.
The proportion of customers who return is the figure that matters most in the early months, and it is worth watching instead of turnover, which says little at that stage.
Between the third and sixth month, if repetition is working, volume begins to compose itself: returning customers plus a few new ones each month. It is slow cumulative growth, not a jump.
Reviews arrive in the same period and accelerate the process, because they remove the barrier that slows new sellers.
If after three months no order has arrived, there is probably a technical problem rather than a market one, and the checks to run are those on findability, price, product pages and availability.
If orders arrive but no customer returns, the problem is downstream: dispatch times, packaging, the match between description and product, or how communications are handled.
It is a useful distinction because it points to where to intervene. No orders is an entry problem; orders without repetition is an experience problem.
The realistic commitment to budget for is therefore several months before you can judge, with an initial investment limited to the time spent uploading the catalogue and the annual fee. It is a contained risk, and it is why it makes sense to try rather than defer.
In summary: the first month produces little for statistical reasons, the first orders arrive between the second and third month and are trials, the figure to watch is repetition rather than turnover, no orders indicates a technical problem while orders without return indicates an experience problem.