This is a classic "Double-Booking" vs. "Complex Work" scenario.

Option B is correct.To book two distinct people for the same work at the same time, you createtwo Service Appointments. You link them using aComplex Workdependency of typeSame Start4. This tells the optimization engine: "Find a time where Resource A (Appointment 1) and Resource B (Appointment 2) are BOTH free, and book them simultaneously."

Option Ais incorrect because a single Service Appointment can typically only have oneactiveAssigned Resource for scheduling purposes in the standard optimization model (unless using Crew Management, but Crews are forstaticteams, not ad-hoc pairs).

Option Dis incorrect because the requirement states they need to be assigned to "individual jobs later that day"5.Service Crewsare designed for resources who stay together all day. Breaking a crew apart for half a day is administratively difficult.

Option Cis a hack (Resource Absence) that blocks the second tech's time but doesn't link them to the actual job details properly.