Do budgets need Account Numbers?

No, you aren't required to add an Account Number to a budget with funding sources. However, this can be helpful for pulling the budget information into your Accounts Payable integration, payments, and Ad Hoc reporting. Including this allows for additional granularity in reporting.

Note: An Account Number is a general term for a unique identifier for a budget. It can be any number you believe is relevant and does not have to be referred to as an Account Number within your organization. For example, this may simply be an internal ID your organization uses on accounts.