Could someone check these sentences and make them sound more natural?. Please feel free to edit or make any changes you deem necessary
They brought materials back from the factory to warehouse but none of them were transferred in the system
These items were considered as scrapping and throw them away
This mistake in the inventory was made because this material was in another store
They made a mistake when discouting the item from their stock
This mistake in the inventory was made because it was not transferred correctly