[SwissXC90]

To add to this:

Due to the way Volvo construct the network in the vehicle and the optimisation of device message priority, differents MYs may have different device addresses for the same device.

This is why a DDM from a 2006 car may not work on a 2008 car. Even though it looks identical.

To ensure functionality, always fit the identical part number, or any subsequent part number as advised by VIDA

As well as the device address issue, many devices are programmed for the car, so that all the functions work with the correct parameters. This may be for region specific compliance (USA vs europe), or country level compliance (alarms in Belgium are different to alarms in Switzerland), or may be for vehicle specification (Momentum vs Inscription etc), or part compatibility (for control unit X to work with sensor type Y it must be programmed)

A number of devices are loaded with the vehicle chassis number for identification if stolen, and to track the device if removed.
This also prevents 2nd hand parts being fitted to a car being repaired.

To code a new unit, the new unit must be a virgin. Virgin means no chassis number stored.

Revirgining is frowned upon, not supported, and often simply not possible.
Some after-market revirgining tools exist for other brands, but I have never seen one for Volvo.