Rules & and & contradict each other in the settlement share

What causes this issue?

In distribution rule &V1&, a percentage value was entered, while in
rule &V2&, there is an equivalence number. Both rules belong to the
same settlment type and overlap each other in the validity period.

System Response

The system cannot clearly determine the settlement portions for the
affected settlement rules. Note that this message is only issued when
the problem first occurs. You should therefore check all distribution
rules and not just the rules &V1& and &V2&.

How to fix this error?

For rules with the same order type, use either percentage values only,
or equivalence numbers only.
You can switch from percentage settlement for the settlement to
equivalence numbers (or the other way round). To do this, you must
enter the validity periods for the rules so that no rule with
percentage settlement is valid in the same period as a rule with
equivalence numbers.

Error message extract from SAP system. Copyright SAP SE.