Troubleshooting Slack app installation and permissions involves addressing both technical connection issues and administrative permission settings. The process typically requires checking network configurations, verifying app scopes, and adjusting workspace-level permissions. Workspace Owners and Admins play a critical role in managing these settings, as they control whether apps can be installed and what level of access they receive.

Key findings from the available sources include:

• Workspace Owners can restrict app installations to the Slack Marketplace or limit permissions for specific user roles like Multi-Channel Guests ^[1]
• Common installation errors stem from permission mismatches, such as apps requesting scopes beyond what the organization allows ^[6]
• Connection issues often relate to network configurations, including firewall settings, WebSocket disruptions, or outdated Slack desktop apps ^[2][7]
• Troubleshooting steps include collecting Net Logs, testing network connections, and temporarily disabling security software ^[2][7]

Troubleshooting Slack App Installation and Permissions

Managing App Permissions and Installation Errors

App installation failures in Slack frequently occur due to permission conflicts or misconfigured scopes. Workspace Owners and Admins must evaluate an app’s requested permissions before approval, as these scopes dictate what data and actions the app can access. For example, some apps create bot users with extensive permissions, which may exceed an organization’s predefined limits ^[3]. When an app requests more permissions than allowed, users encounter errors like "This app is requesting more permissions than what your Org Admin has granted" ^[6]. In such cases, Admins must either adjust the organization’s permission policies or contact the app developer to modify the requested scopes.

To resolve permission-related issues:

• Review app scopes before installation: New apps display their requested permissions during the installation process. Admins should verify that these scopes align with the app’s intended functionality and the organization’s security policies ^[3].
• Check for scope mismatches: Errors such as "Invalid permissions requested" or "Invalid scope" indicate that the app’s scopes are either unsupported or misconfigured. Developers may need to update the app’s manifest to request valid scopes ^[5].
• Reinstall the app: Some users report that retrying the installation resolves transient permission errors, particularly if the initial failure was due to a temporary system glitch ^[6].
• Contact Slack support or the app developer: If the issue persists, Admins should reach out to Slack’s developer support or the app’s maintainer for clarification on required scopes and potential workarounds ^[5].

For apps that require bot users, Admins should pay special attention to the bot’s permissions, as these can include broad access to channels, messages, and user data. Filtering apps by access type in the Slack Apps page helps identify and manage high-permission apps ^[3].

Diagnosing and Resolving Connection Issues

Connection problems can prevent Slack apps from functioning correctly, even after successful installation. These issues often manifest as error messages like "connectivity failure," "server error," or "WebSocket trouble," and may stem from network restrictions, outdated software, or browser incompatibilities ^[2]. To diagnose these problems, users should start by testing their network connection to Slack’s servers using the connection test tool provided by Slack. This tool checks for WebSocket connectivity over port 443, which is essential for real-time Slack functionality ^[7].

Key steps to resolve connection issues:

• Update the Slack desktop app: Outdated versions may lack critical fixes for connectivity bugs. Users should ensure they are running the latest version of the app ^[7].
• Check firewall and proxy settings: Slack requires persistent WebSocket connections, which can be blocked by corporate firewalls or proxies. Admins should allowlist Slack’s URLs and ensure port 443 is open for WebSocket traffic ^[7].
• Clear cache and restart Slack: For browser-based issues, clearing the cache or restarting the Slack app can resolve loading problems. Desktop users should select *Help > Troubleshooting > Restart and Collect Net Logs* to gather diagnostic information ^[2].
• Temporarily disable security software: Antivirus or ad-blocking software may interfere with Slack’s network requests. Disabling these tools temporarily can help identify the root cause ^[7].
• Collect and submit Net Logs: If issues persist, users should collect Net Logs via the Slack app and provide them to Slack support for further analysis. This is particularly useful for diagnosing WebSocket or server-related errors ^[2].

For browser-specific errors, users should verify that their browser is compatible with Slack and clear any stored cache or cookies. If the problem is isolated to a single device, reinstalling the Slack app or testing on a different network can help narrow down the cause ^[2].