Budget
Expected income & expenses?
A budget is the plan behind the plan: it forces you to name every cost before you are surprised by it.
Budget covers every expected outgoing and incoming: the venue, catering, materials, facilitator fees, travel, printing, and any technology you are renting or licensing. On the income side: registration fees, client payments, grants, or internal charge-backs. Writing it down before you commit to anything turns guesses into decisions.
A budget also surfaces trade-offs early. If the venue you love costs twice what you budgeted for food, you can choose now rather than scramble later. The act of line-itemising often reveals costs nobody thought of and assumptions everyone was quietly making.
Even if someone else holds the budget, the facilitator needs to know what is settled and what is not, because budget constraints shape every other decision: the materials you can order, the catering you can offer, whether you can afford a co-facilitator.