Threshold Rule form fields

reference brazil Updated Oct 13, 2026 1 min read threshold-rule-fields.md

Review the fields on the Threshold Rule form and the rules that govern which comparators and targets you can combine.

To create a threshold rule, see Define threshold rules for a test measure definition.

Field	Description
Number	Identifier that the system generates for the threshold rule. Read-only.
Name	Name of the threshold rule. Required. Maximum 250 characters.
Description	Description of the threshold rule. Maximum 4,000 characters.
Test measure definition	Test measure definition that the rule applies to. Required. The system fills in this field when you create the rule from the Threshold Rules related list of a test measure definition. Read-only.
Conformance comparator exact	Option to compare the captured value against a single exact value instead of a range.
Conformance target exact	Value that the captured value is compared against. Required when you select Conformance comparator exact.
Conformance comparator lower	Comparator for the lower limit: greater than, or greater than or is.
Conformance target lower	Lower limit that the captured value is compared against. Use a numeric value.
Conformance comparator upper	Comparator for the upper limit: less than, or less than or is.
Conformance target upper	Upper limit that the captured value is compared against. Use a numeric value.
Number of allowed crossing	Number of threshold crossings that are allowed before a consequence is applied. Enter an integer.
Severity	Severity of a violation that this rule raises: 1 - High, 2 - Medium, or 3 - Low.
Tolerance period	Duration during which crossings are allowed without a consequence being applied.

Comparison rules

If the value type of the test measure definition is String or Boolean, select Conformance comparator exact.
If you select Conformance comparator exact, enter Conformance target exact and leave the lower and upper fields empty.
If you don't select Conformance comparator exact, leave Conformance target exact empty. Set a lower limit, an upper limit, or both, and give each comparator its target.
Use numeric values for the lower and upper targets.

Keywords threshold rule fieldsconformance comparatorconformance targetallowed crossing

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---
title: Threshold Rule form fields
description: Review the fields on the Threshold Rule form and the rules that govern which comparators and targets you can combine.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/telecom-media-technology/threshold-rule-fields.html
release: brazil
topic_type: reference
last_updated: "2026-10-13"
reading_time_minutes: 1
keywords: [threshold rule fields, conformance comparator, conformance target, allowed crossing]
breadcrumb: [Reference, Service Test Management, Telecommunications, Media, and Technology \(TMT\)]
---

# Threshold Rule form fields

Review the fields on the Threshold Rule form and the rules that govern which comparators and targets you can combine.

To create a threshold rule, see [Define threshold rules for a test measure definition](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/telecom-media-technology/define-threshold-rules.md).

|Field|Description|
|-----|-----------|
|Number|Identifier that the system generates for the threshold rule. Read-only.|
|Name|Name of the threshold rule. Required. Maximum 250 characters.|
|Description|Description of the threshold rule. Maximum 4,000 characters.|
|Test measure definition|Test measure definition that the rule applies to. Required. The system fills in this field when you create the rule from the Threshold Rules related list of a test measure definition. Read-only.|
|Conformance comparator exact|Option to compare the captured value against a single exact value instead of a range.|
|Conformance target exact|Value that the captured value is compared against. Required when you select **Conformance comparator exact**.|
|Conformance comparator lower|Comparator for the lower limit: greater than, or greater than or is.|
|Conformance target lower|Lower limit that the captured value is compared against. Use a numeric value.|
|Conformance comparator upper|Comparator for the upper limit: less than, or less than or is.|
|Conformance target upper|Upper limit that the captured value is compared against. Use a numeric value.|
|Number of allowed crossing|Number of threshold crossings that are allowed before a consequence is applied. Enter an integer.|
|Severity|Severity of a violation that this rule raises: 1 - High, 2 - Medium, or 3 - Low.|
|Tolerance period|Duration during which crossings are allowed without a consequence being applied.|

## Comparison rules

-   If the value type of the test measure definition is String or Boolean, select **Conformance comparator exact**.
-   If you select **Conformance comparator exact**, enter **Conformance target exact** and leave the lower and upper fields empty.
-   If you don't select **Conformance comparator exact**, leave **Conformance target exact** empty. Set a lower limit, an upper limit, or both, and give each comparator its target.
-   Use numeric values for the lower and upper targets.