How to capture Action Name triggered at NWBC in SAP TM

Dear TM Experts,

We had written a custom logic at Freight order determination level after SAVE action.

Our requirement is to restrict this custom logic only at SAVE action but currently this is also getting triggered while creating a delivery.

Is their any way to capture Action details at run time at determination level which user clicks on NWBC. I mean to say similar to the way how we can restrict in normal ABAP using SY-UCOMM system field.

Thanks in advance.

Regards,

Md.Rafi