Creating Application Classes 
To create an application class for your BSP:
Choose the Properties tab page in your BSP application.
Enter the name of your new class in the Application Class field.
Make sure you use a name for your new class that does not yet exist in the SAP System.
Double-click on the new class.
Choose Yes to the prompt "Do you want to create a new class?".
In the following popup you can make further settings for your class. To confirm your entries, choose Save.
Enter the details in the object catalog: Assign your class to a package and choose
(Save).
The system branches from your BSP application into the Class Builder.
Now you are ready to work with your new class.
The properties of your BSP application now look like:

The class you created generates objects, document, sender, receiver, possible attachments as well as a mail request (see the Overview page) and fills them with the data from the form.
Implement the following methods:
Method |
Description |
SET_ADDRESS |
Specifies the address |
SET_TIME |
Specifies the time |
SEND |
Sends the mail |
GET_TEXT |
Fetches the mail text |
Note
You can also combine SET_ADDRESS, SET_TIME and SEND in one method.
The mail text is generated online from the parameters. It looks like this:
Example
Address: John Smith 20 Main Street New York 10054 ......... We will be visiting you on 01.04.2001 at 6pm. ........ We look forward to hearing from you. Yours faithfully, Your Service Team |