Multiple designs can be printed on the same black t-shirt in size M. Shopify counts each one as a separate stock. Blankstock lets you link those variants to the garment they draw from, and writes back a level that matches. The app finds those garments from the colors and sizes of your existing variants, and proposes links when you add new products. Nothing is linked without your approval. Simulation mode is on from the start: the app calculates but writes nothing until you turn sync on.

• One stock level shared by every design printed on the same garment
• Finds your blank garments automatically from color and size
• Proposes a link when you add new products
• Weekly email report so you don't have to log in to check
• Daily reconciliation that shows if levels have drifted apart