Result Codes

Actions (calls that do something, rather than read something) return TruckersMP::Result. Getters never return a result; they signal "no answer" by returning an empty optional instead, as described in Data and Handles.

Code	Meaning
Ok	The operation succeeded.
InternalError	The client failed internally; check the client log.
InvalidParameter	A parameter was missing or malformed, for example a string over its length limit.
WrongThread	Called off the main thread; see Threading.
NotSupported	The declared SDK version is newer than the client, or the member was retired; see Versioning.
NotAuthorized	The plugin does not hold the required intent; see Intents.
UnknownEvent	The event ID is not known to this client.
ServiceUnavailable	No world or service can answer right now, for example in the main menu.
ChatCommandAlreadyRegistered	A chat command with this name already exists. Chat commands belong to the gated chat module.
ChatCommandNotRegistered	No chat command with this name exists.