How has the Pick released happened

Hi Gurus

In my client's application setup, once you Pick Release: system automatically completes the ship confirm process and decreases inventory,and they will only release single order at a time manually by Pick Release function.

But when Pick release SRS is run (which runs .Pick Selection List Generation - SRS), it picks bulk of  order at once and ship confirms.

Client says that no body is manually click Pick release SRS , it automatically run by the system.

Now my question:

1 . Is there a way to ascertain, that the Pick Release SRS (Pick Selection List Generation - SRS) has been run manually or run by system automatically.