Indicates that the parameter does not have a value.
Filled
Indicates that the parameter has a value.
Invalid
Indicates that the parameter value is invalid. This field can be used
by the webhook to invalidate the parameter and ask the server to
collect it from the user again.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07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 page provides documentation for the \u003ccode\u003ePageInfo.Types.FormInfo.Types.ParameterInfo.Types.ParameterState\u003c/code\u003e enum within the Dialogflow v3 API.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of this documentation is for version 2.23.0, with an extensive history provided of previous versions that can be accessed from version 1.0.0.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eParameterState\u003c/code\u003e enum represents the state of a parameter, with possible values including \u003ccode\u003eEmpty\u003c/code\u003e, \u003ccode\u003eFilled\u003c/code\u003e, \u003ccode\u003eInvalid\u003c/code\u003e, and \u003ccode\u003eUnspecified\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe Dialogflow v3 API uses the \u003ccode\u003eParameterState\u003c/code\u003e to describe whether a parameter has no value, has a value, or has an invalid value.\u003c/p\u003e\n"],["\u003cp\u003eWebhooks can use the \u003ccode\u003eInvalid\u003c/code\u003e state to prompt the server to re-collect parameter data from a user.\u003c/p\u003e\n"]]],[],null,[]]
