After customization of the budget module it is possible to accidentally include categories in several budget lines and therefore double budget the same expenses. Furthermore it is possible some categories are not budgeted at all. It would be great if there was a check feature that would let user know if some categories are double counted or not counted at all in the existing budget module.
Kamil Wójcik commented
There must be possibility to add 1 category to multiple budgets (example - I have monthly and yearly budgets for the same groups of categories).
However, I agree that such functionality would be handy and usefull.