You can access the Service Order Custom Fields setting in the Control Panel to add and manage Custom fields to store additional information about service orders.

To access the Service Order Custom Fields setting, click the following icon.

This will open the following form.

SI has 24 Custom fields for service orders.

To add a new custom field for service orders:

1/ Click New.

2/ Select the type of field.

Over time, you will see how many fields are already in use and how many are available.

3/ Add a name for the field.

4/ To reorder the fields, use the Move Down button and the Move Down button.

5/ Click Save.

When adding a List type field, you can click Manage in the List section in the menu and add the options that should be displayed in the dropdown.

You can use the Move Up button and the Move Down button to order the options and set the case of the text in the options.

The custom fields added for service orders are shown under the Custom Fields tab in the New Service Order form. You can add the value for the fields when adding the order or editing its details.

Service Order Custom fields are also seen and can be edited in Mobile Install. The data in these fields will synchronize from SI to Mobile Install and vice versa.

Check out this article for more details.