Sage 200 budget allocation/amendment

SOLVED
Is there a way of adding budget values within a project? For example, we have a project agreed for £5,000.00 materials, £2,000.00 sub-contractors and £1,000.00 lab analysis = total £8,000.00. When the contractors are on-site they realise they need additional materials of £6,000.00 and place an order for them. I want to know if it’s possible for the system to reject this on the basis that the budget is set to £5,000.00 and that can’t be exceeded. If the amount is agreed to be raised, is it possible to adjust it?
Many thanks!