Abstract: A computer-implemented method, for enterprise financial systems, consisting of a set of controls, that checks if the existing bank balance funds available is adequate for each incoming transaction that requires or impacts such funds, and validates the transaction when there is adequate bank funds available, or fails validation when inadequate; and at the same time, accepts and processes incoming receipts, irrespective of whether or not there is adequate bank funds, to cover any negative receipts, even if resulting in or increasing the existing negative bank funds available, if any, and manages the situation arising there out of; as a result of which, the system prevents negative bank funds available, resulting or increasing, from outgoing payments against invoices, by way of, amongst others, restriction on the standard flexibility of fluctuation between positive and negative amounts, and at the same time, accepts all receipts, positive and negative, by way of, amongst others, context-sensitive exceptions to t