Hi Roberto
The workflow will "trigger" if you have activate the event linkage in your system. If not, no workflow will trigger. To find what all standard workflows are there, follow this process:
1) The Business object for TRIP is BUS2089
2) If you go to SWO1,enter this BO , click on where used list, select "Used in" as 'Tasks'-> you will get a lengthy list.
From the list, keep only the ones with 'OTYPE' (visible as just 'OT') = 'WS' - those are workflow templates: (custom workflow templates begin with 9xxxxxxx series):
WS 1000087
WS 1000087
WS 1000087
WS 1000087
WS 20000040
WS 20000040
WS 20000040
WS 20000040
WS 20000050
WS 20000050
WS 20000050
go to PFTC/SWDD and check these out, which one suits your need - activate them via SWETYPV/SWE2.
Regards,
Modak