"Use an existing MID Server to connect to a Source Control repository. Linking or importing an application through a MID Server enables access to repositories behind a firewall." https://docs.servicenow.com/bundle/tokyo-application-development/page/build/applications/concept/c_SourceControlIntegration.html

https://developer.servicenow.com/dev.do#!/learn/learning-plans/rome/new_to_servicenow/app_store_learnv2_scripting_rome_debugging_client_scripts The following are debugging strategies for client-side scripts, which run in the web browser and manipulate the user interface:
g_form.addInfoMessage(). This is a client-side API that displays an information message at the top of the form.
Field Watcher. This is a debugging tool that displays the current and previous values of one or more fields on a form.
jslog(). This is a client-side API that writes a message to the browser console.
The following is not a debugging strategy for client-side scripts, but for server-side scripts, which run on the ServiceNow platform and manipulate the database:
gs.log(). This is a server-side API that writes a message to the system log. Reference: Client-Side Scripting APIs, Debugging Client Scripts

"The sequence is ROLES first, then condition, then script." - Chuck Tomasi says so at this link: https://www.servicenow.com/community/grc-forum/order-of-execution-of-an-acl/m-p/1311962/highlight/true#M6538

Inbound Action scripts are server-side scripts that run when an email is received by the system. They can use the current object to access the record that is created or updated by the email, and the email object to access the properties and methods of the email message. The previous and event objects are not available in Inbound Action scripts. The producer object is only available in Record Producer scripts, which are used to create records from a service catalog item.
Reference:
Inbound Action scripts
[Record Producer scripts]

https://docs.servicenow.com/bundle/rome-application-development/page/build/applications/concept/c_ScriptProtectionPolicy.html The following is true for a Script Include with a Protection Policy value of Protected:
The Protection Policy is applied only if the application is downloaded from the ServiceNow App Store. This is true because the Protection Policy is a feature that allows developers to protect their Script Includes from being viewed or modified by other users when they distribute their applications through the ServiceNow App Store. The Protection Policy is only enforced when the application is installed from the App Store, not when it is developed or tested on the instance.
The following are not true for a Script Include with a Protection Policy value of Protected:
Any user with the protected_edit role can see and edit the Script Include. This is false because the protected_edit role is not related to the Protection Policy, but to the Access Control (ACL) rules. The protected_edit role allows users to edit protected fields on a table, such as the script field on the sys_script table, which stores the Business Rules. The Protection Policy does not use roles to control access to the Script Includes, but a cryptographic key that is generated when the application is published to the App Store.
The Protection policy option can only be enabled by a user with the admin role. This is false because the Protection policy option can be enabled by any user who has the application_admin role for the scoped application that contains the Script Include. The application_admin role grants full access to the application development and administration within the scope of the application.
The Protection Policy is applied only if the glide.app.apply_protection system property value is true. This is false because the glide.app.apply_protection system property is not related to the Protection Policy, but to the Application Restricted Caller Access (ARCA) feature. The ARCA feature allows developers to restrict the access to the Script Includes from other applications based on the caller's scope. The glide.app.apply_protection system property determines whether the ARCA feature is enabled or disabled on the instance. Reference: Script Includes, Protect Script Includes, Application Restricted Caller Access