Supply-chain depth, merchandising at the core.
Slimstock's Slim4 is a mature supply-chain planning platform, forecasting, replenishment, MEIO and S&OP across retail, wholesale and manufacturing. Tightly leads with the merchandise plan instead, MFP, assortment, size and markdown, with an ML forecast and agents that act.
Keep what works. Lose what breaks.
Merchandising-led, not supply-led
Slim4 is deep supply-chain planning. Tightly leads with the merchandise plan, MFP, assortment, OTB and markdown, reconciled with the forecast.
Sizes and markdowns, not just stock
Plans at size level and stages markdowns, the merchandising depth a fashion or retail brand actually needs.
Agents that act
The repetitive reconciliation and reorder work is done for you, under your policy, not left as a recommendation.
It shows up in the numbers.
“We scaled into a facility four times the size and expanded into entirely new categories — managing it all with the same lean team. Tightly didn't just automate our stock, it gave us the confidence to grow.”
Beauty & wellnessFace the Future hit these numbers after moving into a facility 4× the size, with the same lean team.
Across beauty, the leaders sell 71% at full price against 57% — a 14-point gap, won by acting on demand signals faster.
Tightly · State of Retail Inventory 2026
Plan with confidence. One set of numbers, every team, every week.
There's nothing to rip out. Tightly runs on your existing ERP, EDI, e-commerce and POS. Give us 30 minutes and we'll show it on your own categories.