Fast Formula to retrieve employees within the organzation hierarchy

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Hello experts,

have you ever built a fast formula retrieving people belonging to a specific organization hierarchy?

For example we have Organization A (top node) and Organizations B-C-D under it. We should create FF to extract people working in Organization A hierarchy. Is it possible to do it? If so, do you have examples?

Thanks in advance for your time!

Kind Regards,

Valerio

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