Definition
External Client App Manager is a Setup page for managing external client applications that connect to Salesforce using OAuth or other authentication methods. It provides controls for registering, configuring, and monitoring third-party client apps that access Salesforce data and APIs.
Real-World Example
The developer at Velocity Partners registers a new React Native mobile app in the External Client App Manager. She configures the OAuth callback URL, scopes, and refresh token policies. The page also shows her a list of all registered external client apps, their usage statistics, and which users have granted them access.
Why External Client App Manager Matters
External Client App Manager is the central hub where developers and administrators register and govern third-party applications that connect to Salesforce through OAuth and other authentication protocols. Every modern Salesforce implementation involves external apps — mobile applications, web portals, integration middleware, and partner solutions — that need secure API access to Salesforce data. This Setup page lets teams configure OAuth callback URLs, define permission scopes, manage refresh token policies, and monitor which users have authorized each application. Without it, organizations would have no visibility into which external applications are accessing their data.
As organizations scale their integration landscape, the number of connected applications can grow from a handful to dozens or even hundreds. Each connected app represents a potential attack vector if not properly managed. The External Client App Manager becomes critical for governance — it enables security teams to revoke access for deprecated apps, enforce token expiration policies, and audit which applications have access to sensitive data. Organizations that neglect this tool risk data leakage through forgotten or unauthorized app connections, non-compliance with data protection regulations, and inability to respond quickly when a third-party vendor is compromised.
How Organizations Use External Client App Manager
- Orbit Technologies — Orbit Technologies built a React Native mobile app for their field sales team and registered it in the External Client App Manager with read-only scopes for Accounts and Opportunities. When a data breach at their mobile app hosting provider was discovered, the admin was able to instantly revoke the app's OAuth tokens for all 300 users from a single page.
- Prism Analytics — Prism Analytics uses the External Client App Manager to manage 15 different connected applications, from their marketing automation platform to a custom data warehouse ETL tool. Their quarterly security review involves auditing each app's permission scopes and revoking access for any tools that haven't been used in 90 days, keeping their integration footprint lean and secure.
- Catalyst Commerce — When Catalyst Commerce switched from one e-commerce platform to another, their admin used the External Client App Manager to deregister the old platform's connected app and register the new one. By comparing usage statistics between the two apps during the migration period, they confirmed that all API traffic had successfully shifted before fully decommissioning the old connection.