[[["เข้าใจง่าย","easyToUnderstand","thumb-up"],["แก้ปัญหาของฉันได้","solvedMyProblem","thumb-up"],["อื่นๆ","otherUp","thumb-up"]],[["ไม่มีข้อมูลที่ฉันต้องการ","missingTheInformationINeed","thumb-down"],["ซับซ้อนเกินไป/มีหลายขั้นตอนมากเกินไป","tooComplicatedTooManySteps","thumb-down"],["ล้าสมัย","outOfDate","thumb-down"],["ปัญหาเกี่ยวกับการแปล","translationIssue","thumb-down"],["ตัวอย่าง/ปัญหาเกี่ยวกับโค้ด","samplesCodeIssue","thumb-down"],["อื่นๆ","otherDown","thumb-down"]],["อัปเดตล่าสุด 2025-07-26 UTC"],[[["\u003cp\u003eDefines an event parameter for mutation using JSON representation with \u003ccode\u003eparameter\u003c/code\u003e and \u003ccode\u003eparameterValue\u003c/code\u003e fields.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eparameter\u003c/code\u003e specifies the event parameter's name for mutation, adhering to specific length, uniqueness, and character constraints.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eparameterValue\u003c/code\u003e defines the mutation, either as a constant string value or by copying from another parameter using a specific syntax.\u003c/p\u003e\n"]]],["The provided JSON structure defines event parameter mutations, requiring a `parameter` name and its `parameterValue`. The `parameter` must be a unique string (under 40 characters), containing letters, digits, or underscores; 'eventName' is also acceptable for event edits. `parameterValue` (under 100 characters) can be a constant string or reference another parameter using the format \"\\[\\[other_parameter\\]\\]\". This controls how an event's parameter should be changed.\n"],null,["# ParameterMutation\n\n- [JSON representation](#SCHEMA_REPRESENTATION)\n\nDefines an event parameter to mutate.\n\n| JSON representation |\n|-----------------------------------------------------------|\n| ``` { \"parameter\": string, \"parameterValue\": string } ``` |\n\n| Fields ||\n|------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `parameter` | `string` Required. The name of the parameter to mutate. This value must: \\* be less than 40 characters. \\* be unique across across all mutations within the rule \\* consist only of letters, digits or _ (underscores) For event edit rules, the name may also be set to 'eventName' to modify the eventName in place. |\n| `parameterValue` | `string` Required. The value mutation to perform. \\* Must be less than 100 characters. \\* To specify a constant value for the param, use the value's string. \\* To copy value from another parameter, use syntax like \"\\[\\[other_parameter\\]\\]\" For more details, see this [help center article](https://support.google.com/analytics/answer/10085872#modify-an-event&zippy=%2Cin-this-article%2Cmodify-parameters). |"]]
