Once a budget is approved it can be modified. Modifying a budget creates a new copy of the budget and puts it into a draft state so it can be edited. Any changes made to the budget are in effect for the full budget period, not from the date of modification.
The original budget is added to a Modified Budgets Log below the list of budgets. This can be viewed but not edited. This version will never be available in the list when running reports.
When approving a modified budget, if lines were added on a rent or outgoings template when the budget was first approved, these lines can be replaced. Alternatively, new lines can be added.