Go to Sales >> invoice.
Click + create.
Click the checkbox goods already supplied.
Choose the DC number from the Supplied DCs drop down.
The material will be auto populated from the Dcs.
Click Save.
Go to Sales >> invoice.
Click + create.
Click the checkbox goods already supplied.
Choose the DC number from the Supplied DCs drop down.
The material will be auto populated from the Dcs.
Click Save.
Read more about it here