Start with the series, not the unit price
In the Market of Kids catalog, a product card may show a per-piece price and a series total. The order is placed by series. If a five-piece series is priced at 20 USD per piece, one series costs 100 USD and adds five garments to the order.
This sounds elementary, but it prevents a common mistake: comparing the series total of one product with the unit price of another. Record both figures when preparing a buy sheet. The useful columns are product code, sizes in the series, number of pieces, unit price and series total.
Check the actual sizes
Piece count does not tell you which sizes are included. A five-piece run might cover ages 1 through 5, while another might cover sizes 6 through 10. Product pages list the configured sizes; use that list rather than inferring an age range from the photograph or product name.
The same check matters when two series overlap. A dress offered in sizes 3-7 and again in 8-12 is two different stock decisions. A boutique serving primary-school children may need the second run more than the first even when the design is identical.
Build the order around customers you already serve
Begin with sales records or a simple tally from the shop floor. Note the ages requested, the categories sold and the sizes that ran out first. Use those observations to choose series. Buying every available run because a model photographs well can leave a shop with attractive stock in the wrong sizes.
New shops have less evidence. In that case, keep the first order narrow enough to learn from. Choose a small number of categories, retain the product codes and review sell-through by size before the next order.
The catalog shows the series configured for each product. Availability and the final order are confirmed with a sales advisor before payment.
A five-line order check
Before sending a selection, confirm the product code and colour, copy the listed sizes, multiply series quantity by the number of series required, verify the currency, and save the product URL. That URL gives the advisor an exact reference if a brand uses similar model numbers.
Do not treat a zero or missing online stock figure as a promise that a product is unavailable. Wholesale stock changes during the day. The advisor confirms the current position when the order is reviewed.