FCCS shared entity data roll-up prospective basis

Summary:

Hi,

In FCCS entity Hierarchy, we have an requirement where in balances for a shared base node(E1) should rollup data only to Parent1 but not Parent2 on prospective basis (i.e.) historical data should be rolled up to both parents but for future periods balances should be rolled up only to parent1. What is the industry standard for this type of requirement ?

Thanks

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