Budgets have been described up to this point as having two major functions: defining valid chart of account code (COA) combinations and tracking transaction activity. Presence Control is the term used to refer to the COA combination editing. Under this control level, an accounting transaction that will update a budget must have matching COA to an existing budget line. If not, a 'budget line not found' error will be issued.
While those abilities are very important, certain budget structures have to possess the ability to control the updates from budget and accounting transactions. This type of control is often referred to as Full Control.