[Home](./index.md) > [bitburner](./bitburner.md) > [WarehouseAPI](./bitburner.warehouseapi.md) > [cancelExportMaterial](./bitburner.warehouseapi.cancelexportmaterial.md) ## WarehouseAPI.cancelExportMaterial() method Cancel material export. **Signature:** ```typescript cancelExportMaterial( sourceDivision: string, sourceCity: CityName, targetDivision: string, targetCity: CityName, materialName: CorpMaterialName, ): void; ``` ## Parameters

Parameter	Type	Description
sourceDivision	string	Source division
sourceCity	[CityName](./bitburner.cityname.md)	Source city
targetDivision	string	Target division
targetCity	[CityName](./bitburner.cityname.md)	Target city
materialName	[CorpMaterialName](./bitburner.corpmaterialname.md)	Name of the material

**Returns:** void ## Remarks RAM cost: 20 GB