If you want to change a rule that's already active, (eg change a rule from 5 emails per week to 3 emails per week):
- There is no need to update any journey builder components or change any journeys.
- You just need to change the rule in the admin panel. A banner will then pop up asking if you want to retrigger the calculation. If you confirm, the new rule will be applied in active journeys as soon as the recalculation has completed.