Budget definition by country bottom-up approach

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Hello experts,

we need to define budget at country level according to a bottom-up approach. We have calculation rules by country. If an employee has reports from France; Italy, Germany and other countries, customer expecs to see Overall Budget splited by country and monitor budget constrainsts not on the overall but at country level budget. Is there a way to trigger a blocking alert when the budget defined at country level is exceeded? At this moment, the validation is on the Overall Budget which is the sum of country budgets. Is there a way to trigger a blocking alert when the