---
title: Remove Unused Services From Client Script
description: "Impact Area Performance Severity Medium Affected Element Service Portal Widget ## Rule ID SN-AVOID-INJECT-NOT-USED-SERVICE ## Impact Inject Angular services or Service Portal services not needed in the controller increase performance overhead. ## Remediation Delete any unused injected services from the…"
url: "https://community-staging.qualityclouds.com/qcdocs/qc/servicenow-rules/remove-unused-services-from-client-script/"
updated: "2025-03-21"
category: Rules for ServiceNow / ServiceNow Rules
---

# Remove Unused Services From Client Script

Impact Area

Performance

Severity

Medium

Affected Element

Service Portal Widget

## Rule ID

SN-AVOID-INJECT-NOT-USED-SERVICE

## Impact

 Inject Angular services or Service Portal services not needed in the controller increase performance overhead.

## Remediation

 Delete any unused injected services from the client script acting as the controller.

**Time to fix**

5 min