Can anyone tell me how are data and information used in human services organizations to support organizational planning? Is this like recuriting within a comapny, bill pay, these types of things?

One big item in planning is an organization's budget. Personnel costs need to be planned first, including

salary/wages
medical benefits (if any)
employment taxes
etc.

Knowing how much each employee "costs" enables organizations, public or private, to know how many people at different levels of pay can be hired or kept -- or how many need to be let go.

That's just one example, but it's a basic one.