Salesforce Account Hierarchies are great for modelling global organisations or large corporations with a complex structure and multiple subsidiaries. However, there is a catch in the way the hierarchy is modelled. You might have thought “Great, I’ll create all the accounts and then we’ll roll everything up the hierarchy”. Guess what! You can’t really do that out of the box with roll-up summary fields.
Read our article on Forcetalks to find out more on how to create rollup summaries with Flow.