Orchestrator requires the UiPath Automation Cloud for enterprise. If you are an enterprise cloud customer, please contact your administrator to enable it. If you are a community cloud customer and would like to try Orchestrator, please consider an enterprise cloud trial.
Is orchestrator enabled for the tenant? You can find out by going the the Admin portal, select the tenant, and see under Services what has been provisioned. You can provision Orchestrator there too if it’s not yet enabled for the tenant.