Sales from sales organization &1, distr. channel &2, plant &3 not defined

What causes this issue?

You have specified plant &V3& for the subsequent delivery free of
charge. However, Enterprise Structure settings, this plant is not
assigned to the combination of sales organization &V1& and distribution
channel &V2& used for this returns order.

System Response

The system does not allow you to use plant &V3& for the subsequent
delivery free of charge.

How to fix this error?

Enter a plant for which the material of this item was created and that
is assigned to the combination of sales organization &V1& and
distribution channel &V2&.
If you have the necessary authorization, you can display the existing
assignments of plants to combinations of sales organizations and
distribution channels in Customizing for <LS>Enterprise Structure</>.
Choose <LS>Assignment</> -> <LS>Sales and Distribution</> -> <LS>Assign
sales organization - distribution channel - plant</>.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.