Detection Rules
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Pay-per-use expenditures: AI algorithms are used to intelligently identify unexpected expenditure spikes based on machine learning. If the actual cost in a day is $1 USD greater than the maximum forecasted cost of that day, a cost anomaly is identified.
Percentage of pay-per-use costs that are impacted = (Actual cost – Maximum forecasted cost)/Maximum forecasted cost
For example, if the actual cost on July 23 was $105 USD, but the maximum forecasted cost was $100 USD, that will be identified as a cost anomaly.
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Yearly/Monthly expenditures: If the actual period-over-period (PoP) growth rate of MTD costs (excluding the current day) exceeds the threshold you set over the previous billing cycle and the difference is greater than $1 USD, a cost anomaly will be identified.
PoP growth rate = (Actual cost for the current month – Cost for the previous month)/Cost for the previous month
For example, if your expenditures from June 1 to 23 were $100 USD and the expenditures from July 1 to 23 (the current day is July 24) were $121 USD, and the threshold was set to 20%, then the actual growth rate (21%) exceeds the threshold, and that will be identified as a cost anomaly.
There are three severity levels for cost anomalies:
- Minor: > 0% and < 20%
- Major: ≥ 20% and < 50%
- Critical: ≥ 50%
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