[Home](./index.md) > [bitburner](./bitburner.md) > [WarehouseAPI](./bitburner.warehouseapi.md) > [limitProductProduction](./bitburner.warehouseapi.limitproductproduction.md)
## WarehouseAPI.limitProductProduction() method
Limit Product Production.
Signature:
```typescript
limitProductProduction(divisionName: string, cityName: string, productName: string, qty: number): void;
```
## Parameters
| Parameter | Type | Description |
| --- | --- | --- |
| divisionName | string | Name of the division. |
| cityName | string | Name of the city. |
| productName | string | Name of the product. |
| qty | number | Amount to limit to. Pass a negative value to remove the limit instead. |
Returns:
void