> ## Documentation Index
> Fetch the complete documentation index at: https://docs.superoffice.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Set preference

> How to set preferences using services

The following example shows how to set preferences for the visual section of the diary.

## Code

```csharp theme={null}
using SuperOffice.CRM.Services;
using SuperOffice.CRM.Services.Util;
using SuperOffice.CRM;
using SuperOffice;

using(SoSession newSession = SoSession.Authenticate("SAL0", ""))
{
  //Retrieve the configuration agent
  using(PreferenceAgent agent = new PreferenceAgent())
  {
    //Create an array of preferences
    Preference[] preferences = new Preference[] { new Preference() };

    //Setting the preferences
    preferences[0].Specification = new PreferenceSpec();

    //Set the appearance of the Interface
    preferences[0].Specification.Section = UserPreferenceStrings.Visual.Section;

    //Make these preferences valid for all the users
    preferences[0].Level = UserPreferenceStrings.PreferenceLevel.Database;

    //Marking Monday as the first day of the week instead of Sunday
    preferences[0].Specification.Key = UserPreferenceStrings.Visual.SundayFirstDay;
    preferences[0].RawValue = "False";

    //Save the changes in the database
    agent.SavePreferences(preferences);
  }
}
```

## Walk-through

Here we create an instance of the `Preference` class and set certain specifications of it and have set the `RawValue` of the `Visual` section and the `NSundayFirstDay` key as *false* so that the Sunday will be displayed as the first day of the week.

Through the `PreferenceAgent`, we can save these changes in the database. Since the `PreferenceLevel` is set to the Database level, these changes are visible to all the users. The `prefdesc` table holds the names and descriptions of the preferences visible in SuperOffice. The preference values are stored in the `userpreference` table.


## Related topics

- [Set Preferences](/en/api/reference/restful/agent/phonelist_agent/set-preferences.md)
- [Preferences](/en/admin/preferences/index.md)
- [User preferences](/en/admin/user-preferences/index.md)
- [NSPreference](/en/automation/crmscript/reference/CRMScript.NetServer.NSPreference.md)
- [Working with preferences](/en/admin/preferences/update.md)
- [Change a preference](/en/learn/getting-started/preferences.md)