System Settings dialog box - Customization tab

Applies To: Dynamics 365 (online), Dynamics 365 (on-premises), Dynamics CRM 2013, Dynamics CRM 2015, Dynamics CRM Online, Dynamics CRM 2016

Use the Customization tab in System Settings to set preferences for plug-in and workflow tracing and also the use of application mode..

Open the System Settings dialog box (if it isn’t already open)

Make sure that you have the System Administrator or System Customizer security role or equivalent permissions.

Check your security role
- Follow the steps in View your user profile.
- Don’t have the correct permissions? Contact your system administrator.
Go to Settings > Administration.
Choose System Settings and then choose the Customization tab.

Settings	Description
Application mode
Set whether Microsoft Dynamics 365 can be opened in a browser window without menu, navigation, and command bars.
Open Microsoft Dynamics 365 in Application mode	Select this check box to enable application mode. When this mode is enabled, Microsoft Dynamics 365 can be opened in a browser without menus, navigation, or toolbars. Hiding these parts of the browser causes Microsoft Dynamics 365 to appear like a separate application rather than a website. By default, application mode isn’t enabled.
Plug-in and custom workflow activity tracing
Enable logging to plug-in trace log	You can now store detailed information about an exception or trace event raised by a custom code to help developers debug plug-ins or custom workflow activity that they develop using the customization methods supported by Microsoft Dynamics 365. To capture trace logs only for exceptions, select Exception. To capture logs for all errors and general trace events, select All. To disable capturing trace logs, select Off. More information: MSDN: Debug a plug-in Warning We recommend that you don’t keep this option enabled for an extended period because it may have performance implications in your organization.