Deduction on & by & is not possible

What causes this issue?

You have entered a time for a deduction for gratuitous meals.
However, there was an absence from the workplace or a hospital stay at
that time.
A deduction is not possible in this case.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Delete the deduction.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.