Data source incorrect; cannot create FWSD for main or on-carriage

What causes this issue?

You have attempted to create a forwarding settlement document for a
forwarding order for a buyer's consolidation. However, this is not
possible because the data source in the calculation profile that you are
using in the forwarding order is not correct.
You have specified a data source of <LS>Ordered Route</> or <LS>Actual
Route and Ordered Route</>. For a buyer's consolidation, the data source
must be <LS>Actual Route</> because you need payment for the main and
on-carriage from an internal business partner. The internal business
partner is the agreement party in the forwarding order.

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?

Contact your system administrator.

Procedure for System Administrators

Enter a data source of <LS>Actual Route</> for the calculation profile
in the
<DS:SIMG./SCMTMS/V_CAPR>Define Calculation Profiles</> Customizing
activity.

Error message extract from SAP system. Copyright SAP SE.