
Maintaining Plug-Ins and Opening a Structure: BAPI
Prerequisites
You have created a form in Microsoft Visual Basic and have launched the
SAPforms Designer as an add-in and are in the main screen. The form controls are shown in the table displayed in the bottom screen area. 
The procedure described below is the same if you are using the
Submit Control or the stand-alone version of the SAPforms Designer.
Procedure
The SAPforms RFC Logon - System Selection dialog box is then displayed.
You can find out which SAP Systems you are already logged on to on the Recent tab page. You can also select an existing logon.
The interface description of the BAPI is exported from the SAP System and displayed in the top area of the main SAPforms Designer.

You do not need to maintain the plug-ins on a separate screen for this SAPform form application. You have already declared the
Plug-In for the Function Module Interface with the Open command. A communication plug-in is not required.The value in the SAPforms Plug-In box is set by default according to the development environment you are using. If you are using the stand-alone version of the SAPforms Designer, you must also maintain this plug-in.
Result
The SAPforms form is now prepared for the
Definition of the Binding.