&1: The maturity must be a whole-number multiple of the payment frequency

What causes this issue?

Reference interest rate &V1&: The compounding frequency is not set to
<ZK>Standard.</> Thus the maturity must be a whole-number multiple of
the payment frequency.

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?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.