A budgetary control system limits revenue generating transactions that may be entered in an enterprise management system. When a new revenue posting is proposed to the system, various AVC rules are evaluated. The evaluation compares the revenue posting against predetermined budgetary limits. The AVC rules may address various nodes within a revenue postings data structure and within a revenue budget data structure and they may define a test relationship that must be maintained between them. If proposed revenue posting would violate the test relationship of an AVC rule, then the revenue posting may be rejected from the system depending upon the contents of a response field in the AVC rule. Some AVC rules mandate that a violation cause the proposed transaction to be blocked while others may generate a warning notification within the system but admit the new transaction despite the violation.