Decision expression &1 cannot be evaluated in RANGE &2

What causes this issue?

The system cannot calculate the range expression because it is unable to
determine a valid result for a required subexpression.

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?

Check whether there are any error messages for the subexpressions.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.