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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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\u003eThis webpage details the \u003ccode\u003eBasis\u003c/code\u003e enum within the \u003ccode\u003eGoogle.Cloud.Billing.Budgets.V1\u003c/code\u003e namespace, used to define the type of spend basis for billing budget threshold rules.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eBasis\u003c/code\u003e enum has three possible values: \u003ccode\u003eCurrentSpend\u003c/code\u003e, which compares against the current spend; \u003ccode\u003eForecastedSpend\u003c/code\u003e, which compares against predicted spend and is only applicable for budgets with calendar period timeframes; and \u003ccode\u003eUnspecified\u003c/code\u003e, representing an undefined basis.\u003c/p\u003e\n"],["\u003cp\u003eThe webpage provides links to documentation for various versions of the Google Cloud Billing Budgets library, ranging from version 1.1.0 to the latest 2.6.0.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation is part of the Google Cloud Billing Budgets V1 API, with the associated assembly being \u003ccode\u003eGoogle.Cloud.Billing.Budgets.V1.dll\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,[]]
