The use of job priorities in unattended automations within UiPath Orchestrator is to determine which processes should be executed first when dealing with multiple jobs. Job priorities are values that can be assigned to jobs or triggers when they are created or edited. The possible values are High, Normal, and Low.
Job priorities affect the order in which the jobs are executed by the robots, with higher priority jobs being executed before lower priority jobs. Job priorities can help you to optimize the execution of your unattended automations, especially when you have limited resources or time-sensitive processes. You can also use job priorities to create job dependencies that must be completed before new job execution, by using the Start Job activity with the Wait for completion option and setting the priority of the child job to High. References: [Job Priority], [Start Job]