Booking a participation without approval in LSO

Hello All,

Can we book a participation without waiting for manager's approval in LSO workflow? Currently, we are using a custom workflow (which is a copy of WS12000003 with some additional steps) and using task TS12000002  to book the participation in background. But we have a requirement to book the participation without approval from a manager and just send notification to manager after the participation has been booked. So if I exclude the approval step from workflow and use the step with task TS12000002, ERROROCCURED field is returning 1. How could I make this work?

Thanks,

Suma