I am working on module pool program. I need to know how to lock the transaction. That is when I execute my transaction code it should be in active mode or in editable mode. But simultaneously if i open the transaction the other time the screen shoul be in display mode and it should not allow me to edit any of the fields or buttons in the screen. How can this be done.
How can be the transaction can be locked when one is using the transaction before
Please help me with this.
Thanks in advance