Source crcy &1 used by crcy type &2 is missing in ledger &3/CoCode &4

What causes this issue?

Currency type &V2& uses currency type &V1& as source currency type but
&V1& is not included in the assignment of ledger &V3& / company code
&V4&.

System Response

This leads to a database mismatch.

How to fix this error?

Add the source currency &V1& to the entry ledger &V3& / company code
&V4& or remove the currency &V2& from that entry.

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.