Condition &1: Error in converting exchange rate from &2 to &3

What causes this issue?

An error has occurred during currency conversion.
The following causes are possible:
There is no valid <GL:exchange_rate>exchange rate</>
The calculation procedure was incorrect

How to fix this error?

Check whether there is a valid exchange rate from &V2& to &V3& in
Customizing, in the chapter "Define conversion factors for currency
conversion", and supplement it as necessary.
INCLUDE 'NA_SYSAD3' OBJECT DOKU ID TX LANGUAGE E

Error message extract from SAP system. Copyright SAP SE.