Serial Number

Hi

I am trying to create a Automatic Serial Number in MB1A transaction and CO01 and am using fm EXIT_SAPLIPW1_001 . to automate the serial number.

Mainly this is referring SER03, SER05 and OBJK tables. but finally the updated serial numbers are stored in MASE table. My own logic is updating in all the tables except MASE table in the first time.

Pls suggest me how do i insert a new row in MASE table at first time

Regards

Ganesan.K