Item &1: Plant &2 not allowed; intercompany billing settings incomplete

What causes this issue?

You have entered &V2& as the receiving plant in returns order item &V1&.
This plant is assigned to a company code that deviates from the company
code to which the sales organization &V3&, which belongs to the sales
area for this returns order, is assigned.
To complete the financial settlement in this case<(>,<)> Advanced
Returns Management requires that the receiving company code (the company
code of the receiving plant) compensates the company code to which the
sales organization is assigned (the company code that compensates the
customer).
However, the settings for intercompany billing are not complete.

System Response

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

How to fix this error?

Check the settings for intercompany billing:
In Customizing for <LS>Sales and Distribution</>, choose <LS>Billing</>
-> <LS>Intercompany Billing</> -> <LS>Assign Organizational Units By
Plant</>.
Check and<(>,<)> if necessary<(>,<)> enter the sales area for
intercompany billing of plant &V2&.
In Customizing for <LS>Sales and Distribution</>, choose <LS>Billing</>
-> <LS>Intercompany Billing</> -> <LS>Define Internal Customer Number By
Sales Organization</>.
Check and<(>,<)> if necessary<(>,<)> enter the customer for intercompany
billing of sales organization &V3&.
Check in the customer master data maintenance that this customer is
maintained for the sales area used for intercompany billing of plant
&V2&. If necessary, enter this master data record in the system.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.