Use current spend as the basis for comparison against the threshold.
ForecastedSpend
Use forecasted spend for the period as the basis for comparison against
the threshold.
FORECASTED_SPEND can only be set when the budget's time period is a
[Filter.calendar_period][google.cloud.billing.budgets.v1.Filter.calendar_period].
It cannot be set in combination with
[Filter.custom_period][google.cloud.billing.budgets.v1.Filter.custom_period].
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe latest version of the \u003ccode\u003eThresholdRule.Types.Basis\u003c/code\u003e is 2.6.0, which is part of the Google Cloud Billing Budgets V1 API.\u003c/p\u003e\n"],["\u003cp\u003eThis API enum defines the \u003ccode\u003eBasis\u003c/code\u003e for determining if spending has exceeded a threshold, providing options like \u003ccode\u003eCurrentSpend\u003c/code\u003e, \u003ccode\u003eForecastedSpend\u003c/code\u003e, and \u003ccode\u003eUnspecified\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eCurrentSpend\u003c/code\u003e compares current expenses against the threshold, while \u003ccode\u003eForecastedSpend\u003c/code\u003e projects future spending for the period, though the latter is limited to calendar period budgets.\u003c/p\u003e\n"],["\u003cp\u003eThere are various previous versions available for the \u003ccode\u003eThresholdRule.Types.Basis\u003c/code\u003e API, starting from version 1.1.0.\u003c/p\u003e\n"]]],[],null,[]]
