04/09/2026
You make a batch. That single act needs to update four different things at once — and in most systems, it doesn't.
Here's what actually happens inside the Core Workspace plus your maker Studio when you log a batch: your formulation is already sitting there with its ingredient list and quantities. When you record the batch as made, stock for every ingredient in that formulation is deducted automatically — no separate stock spreadsheet to update by hand afterwards. The batch gets its own record: date made, quantity yielded, which ingredients went in and at what actual cost, so if a supplier price changed since last time, this batch reflects the real number, not last spring's guess.
From there, the finished product lands in your finished-goods inventory with a cost-per-unit calculated from what the batch genuinely cost to make — not a rough estimate you did once and never revisited. For soap, skincare and candle makers, the same batch record carries through to your INCI or allergen information, so the label pulls from the actual formulation used, not a separate document you're trusting yourself to keep in sync.
Sell that stock — through an invoice, a market, a wholesale order — and it deducts from finished goods. Ask which batch a specific sale came from, six months later, and the trail is already there: formulation, ingredient cost, batch, label, sale, one thread.
No separate stock list. No separate costing spreadsheet. No searching three files to answer one question about one candle.
See the full workflow for your craft in Stillroom HQ. https://stillroomhq.co.uk/l/mdHkZb4
