# Using the Service window - Customer tab In the Customer tab, all the service data relating to the customer, his address data, the allocation of vehicles to the customer and the warranty type is entered. During transmission acceptance (PDI - PreDelivery Inspection), this data must be entered by the Voith customer service.
| How to open Service Data - Customer:
Select Service > Service data > Customer in the main window. All the service data is read automatically from a connected transmission control unit.
| How to save changes in the service data:
If you want to save service data in the transmission control unit, click the Write to ECU button. Alternatively: The Save dialog window is displayed if you exit the Service window. In addition, you can use templates to save service data on the local hard disk of your computer and reload them. Please refer to: Using the Get Template and Save Template functions.
| How to delete service data:
If you want to change individual information in the transmission control unit, edit the corresponding input fields and then save the changes using the Write to ECU button. If you want to delete the complete data in the transmission control unit, perform a reset using the Reset Functions diagnostic function. For this purpose, select Service > RESET functions > Delete service data in the main window.
| Notes on customer data:
> Data field | Description | Example |
> Customer | Name / company name of the customer | Public transportation services Demo City |
> Country | Combo box data field Country where the customer is located. The combo box provides a selection of all countries. | Germany |
> Town/place | Town where the customer is located. | Demo City |
> Contact | Name of the contact person at the customer's | John Doe |
> Phone | Phone number of the contact person Always with country and area code! | 0049 7321 6874 |
> E-mail | e-mail address of the contact person | John.Doe@customer.com |
> Bus number | Bus identifier assigned by the customer | No. 25 |
> Depot | Vehicle location at the customer's | Depot, Demo street |
> Registration number | Text of the licence plate | HDH M 123 |
> Warranty code | Identification of the warranty type granted for this vehicle by Voith |  |
| Further topics:
More information on: User level More information on: ECU files More information on: Communication problems More information on: HEX files More information on: RESET functions More information on: FAQ Up > Higher-level section © by Voith Turbo GmbH & Co. KG send remarks to joachim.ehleiter@voith.com (electronic department) or r.theilacker@voith.com (electronic department)