Calculated exchange rate & is too high

What causes this issue?

The exchange rate &V1& was calculated using reference currency &V2& .
The resulting exchange rate exceeds the maximum value permitted (9999
,99999).

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

System Response

Processing cannot continue because the calculated exchange rate cannot
be used.

How to fix this error?

Check the exchange rates for reference currency &V2& and exchange rate
category &V3& in market data area &V4&. If the exchange rates are
correct, you have to define different translation ratios (for example,
100:1 instead of 1:1) for the relevant currencies to ensure that the
resulting exchange rate does not exceed 9999,99999.

Error message extract from SAP system. Copyright SAP SE.