Exchange rate information in document &1 is inconsistent

What causes this issue?

Both a direct and an indirect quotation were transferred for the
exchange rate. This is not allowed.

System Response

INCLUDE ISR_STOP OBJECT DOKU ID TX

How to fix this error?

Correct your entries.

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.