ME392 No delivery type for returns processing assigned to item to item &1

Hello SAP Experts,

While creating Return STO Purchase order I am getting the following error 

ME 392 'no delivery type for returns processing assigned to item to item &1'

Please follow the steps below in order to regenerate this issue:

• First. you need to create a Purchase Order via T-code ME21N.
• And then tick indicator 'Returns Item' in PO item.
• Now when you check the PO  you will get error ME 392.

Please help me to resolve this issue.