SAP S/4HANA Finance for cash management is installed in the system

What causes this issue?

SAP S/4HANA Finance for cash management is installed in the system. The
parameter <LS>Activate CM</> is replaced by the Customizing activity
<LS>Cash Management -> Tools -> Activate Individual Source Applications
</>.

System Response

The system does not save your changes.

How to fix this error?

If you will no longer be using cash management (either classic or SAP
S/4HANA Finance for cash management), deactivate classic cash management
in the Customizing activity under <LS>Global Parameters for Company Code
-> Enter Global Parameters</>.
If you want to continue using cash management:
Activate SAP S/4HANA Finance for cash management in the Customizing
activity under <LS>Cash Management -> Tools -> Activate Individual
Source Applications</>.
Initialize SAP S/4HANA Finance for cash management data under <LS>Cash
Management -> Tools -> Load Transaction Data to Table FQM_FLOW</>.

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.