Currency amount & & in field & could not be converted

What causes this issue?

The currency amount &v1& &v2& has been transferred in the field &v3&.
The SAP internal format cannot be used to transfer this currency
amount.

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?

The error may have occurred because:
&v2& is not a supported currency
More places behind the decimal point have been transferred than are
allowed for this currency.

Error message extract from SAP system. Copyright SAP SE.