Redefining Display and ExistenceCheck Methods
By default each business object always has both the Display and the ExistenceCheck methods. Both these methods do not have any parameters. This means that it is difficult to use these methods in OBN, because for OBN, parameters are necessary.
To remedy this, proceed as follows:
...
1. In transaction SWO1 go to the required business object.
2. Navigate to the method list for the business object, in which ExistenceCheck and Display are specified. Other methods may also be specified here too.
The parameter list is empty for these two methods:
3. Place the cursor on the method you need for OBN, and choose Redefine in the context menu.
4. Choose Parameters.
5. Choose the Create icon. You can specify that your new parameter is created with field proposals from the ABAP Dictionary.
6. Enter the parameters you require.
7. Save your entries.
Example showing two parameters for the Display method that were created on the basis of the SFLIGHT table:
