Error missing data in BAPI interface: IF_VSTEL

Hi Experts,

I am using FM 'BAPI_OUTB_DELIVERY_CREATE_STO' to create STO. After executing one error is coming:

Missing data in the BAPI interface: IF_VSTEL .

But , in debugging mode, this error is not coming.

My code is:

CALL FUNCTION 'BAPI_OUTB_DELIVERY_CREATE_STO'
         IMPORTING
           delivery          = l_vbeln
           num_deliveries    = l_num
         TABLES
           stock_trans_items = lt_stock_trans_items
           return            = lt_return.

After that I execute 'BAPI_TRANSACTION_COMMIT'.

How to solve this issue?

Any possible solution would be gratefully accepted.

Thanks,

Arindam Samanta.