--- title: "When should I use the change control button?" slug: "when-should-i-use-the-change-control-button" updated: 2024-03-28T14:33:11Z published: 2024-03-28T14:33:11Z canonical: "kb.pharos.com/when-should-i-use-the-change-control-button" --- > ## Documentation Index > Fetch the complete documentation index at: https://kb.pharos.com/llms.txt > Use this file to discover all available pages before exploring further. # When should I use the change control button? The following article describes when you should use the Change Control button in the Pharos Administrator to initiate a change or system update. --- Clicking the Change Control button propagates information from the Database to all Pharos services. A Change Control is only required if you change some of the information that is cached at servers. ### **You should use the Change Control button after you:** - Update a Bank - Update a Logon DLL - Update Print Server settings - Update Spool Queue or Printer settings - Update Job Cost Methods - Update Copier settings - Update Terminal settings (where you are using PS20 devices, you also need to stop and start the Monitor Translator) - Update a Pharos Remote Layout - Update a Pharos Station - Update Pharos Popup Questions - Update any SignUp Global Parameters - Update any SignUp Branch Settings - Change Access Times - Change Prompts - Change Server Properties - Update Scripts ### **You do not need to use the change control button when you:** - Update User information - Update User Group information - Update Discount Rates - View Transactions - Update Packages - Add a Message of the Day - View Alerts - Set up an Export Profile - Open a Support Incident - View License Limits - View Server properties Please note there are situations (such as updating a script) where a service may behave inconsistently until a change control is issued. ## Related - [How do I use the Print Scout or Tracker Diagnostic Tool called DiagTool.exe?](/how-do-i-use-the-print-scout-or-tracker-diagnostic-tool-called-diagtoolexe.md) - [How to use Microsoft/Sysinternals DebugView application to capture debug output for analysis?](/how-to-use-microsoftsysinternals-debugview-application-to-capture-debug-output-for-analysis.md) - [MAC OS X Popup Client Error: "Remote host did not accept control file (54)"](/mac-os-x-popup-client-error-remote-host-did-not-accept-control-file-54.md)