on 08-18-2021 09:27 AM - edited on 09-14-2023 10:52 AM by JackLacava
It is not possible to override the aggregation and store a different value in a parent because UD parents are not stored members. The only way to accomplish this is make the parent member a dynamic calculated member and define the calculation you need on that member.
Source: Office Hours 2019-11-26 Partner Enablement