change batch trough bapi in badi

Hi all,

i am trying to update the batch during the process order release,i want to update the batch when i press save button after release of process order in cor2.i am using badi workorder_update.

there i have methods

in_update,

before_update

at_save.

when i try to call bapi_batch_change in the update it is trowing dump saying that creating nested perform on commit.

than i tried to update in before_update there also same problem than i created a FM as update module and calling the bapi inside the FM there also i got the dump.

now i called my FM as update task in method at_save it is giving dump..

can't i call bapi or update module in update task methods or before update.

thanks alot.

babita