Print Form Travel and Expenses.

Dear Expert.

I am checking the form Adobe that is displayed for Travel and Expenses.

I have the following doubt:

1. What is the t.code for check the customizing of this form?

[Form Print|http://img525.imageshack.us/img525/9770/formulario.jpg]

2. How can do debugging for know of where the form get the data that show ?

Thanks in advance.

Regards