Adding Data to a Session: BDC_INSERT 
Adding Data to a Session: BDC_INSERT
Use the BDC_INSERT function module to add a transaction to a batch input session. You specify the transaction that is to be started in the call to BDC_INSERT. You must provide a BDCDATA structure that contains all of the data required to process the transaction completely.
BDC_INSERT takes the following parameters:
The code of the transaction that is to be run.
Parameter to update data locally. If POST_LOCAL = ‘X’, data will be updated locally.
(refer to the keyword documentation of SET UPDATE TASK LOCAL for more information)
The
DYNPROTAB is a table parameter in the function module.