Workflow Studio actions and subflow in RPA Hub

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  • Updated March 12, 2026
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    Summary of Workflow Studio Actions and Subflow in RPA Hub

    This document outlines the integration of actions and subflows within ServiceNow's Workflow Studio and RPA Hub, enabling efficient robot execution. Users should be familiar with the basics of building actions and subflows in Workflow Studio to utilize these features effectively.

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    Key Features

    • Invoke Flows or Subflows: Trigger flows or subflows through RPA Desktop Design Studio, Unattended Robot, or Attended Robot.
    • Client Callable Option: Enable client scripts to initiate RPA Hub flows or subflows, enhancing interaction capabilities.
    • RPA Hub Actions: Several actions are available, including:
      • Add WorkItem to Queue
      • Assign User to Attended Automation Process
      • Change Life Cycle Stage Status of a Bot Process
      • Fetch Created Jobs and Execution Status
      • Start and Stop Processes
      • Update WorkItems and Process Parameters
      • Verify HashCode of Package Versions
    • RPA Hub Subflows: Includes subflows for importing package version attachments, starting processes, and stopping processes, each with specific input and output parameters.

    Key Outcomes

    By leveraging these actions and subflows, ServiceNow customers can effectively manage robotic process automation workflows, streamline operations, and ensure secure handling of sensitive data. The integration facilitates seamless automation, enabling better resource allocation and increased productivity within their processes.

    Two-way integration of actions and subflows in Workflow Studio and RPA Hub for a seamless robot execution.

    Flows and actions overview

    The flows and actions are built using ServiceNow Workflow Studio, so make sure you’re familiar with the Building actions in Workflow Studio and Building subflows in Workflow Studio basics.

    Invoke flows or subflow

    Invoke the flow or subflow via RPA Desktop Design Studio, Unattended Robot, or Attended Robot. For more information, see the topics listed in Flow Designer components.

    Enable the client callable option for a flow or subflow

    Enable a client script to trigger an RPA Hub flow or subflow. For more information, see Enable the client callable option on a flow or subflow in RPA Hub.

    RPA Hub actions

    The following table shows the detailed descriptions, action inputs, and action outputs of RPA Hub actions.

    Table 1. RPA actions
    Action Description Action inputs Action outputs
    Add WorkItem to Queue Action Adds WorkItem in a specified queue in the RPA Hub application and returns the WorkItem ID.
    • Queue Name: Record
    • Name: String
    • Content: String
    • Type: String
    • Priority: String.Choice
    • Stage: String
    • SLA: Date/Time

    The maximum limit for Content field (Request Content and Response Content) is 8000 characters.

    If the Is Work Item Name Sensitive check box on the associated work queue form is selected, the data in the Request Content field is encrypted. Sensitive data with encryption is stored in the work item, so that it can be passed to the RPA Desktop Design Studio or robots.

    • Action Status: Object
    • WorkItemID: GUID
    • IsNameExists: Boolean
    • status: String
    • message: String
    Assign User to Attended Automation Process Action Assigns a user to the attended automation process.
    • Process Name: Record
    • Username: Record
    • Action Status: Object
    • status: String
    • Message: String
    Assign User to Attended Robot Action Assigns a user to the attended robot. Username: Record
    • Action Status: Object
    • status: String
    • Message: String
    Change Life Cycle Stage Status of a Bot Process Action Changes the life cycle stage status of a bot process that is not retired.

    If a bot process is in Build life cycle stage status, if you have the required role, you can update it to Published state, but you cannot update it to In Maintenance.

    If a bot process is in Published life cycle stage status, if you have the required role, you can update it to In Maintenance state, and vice versa.

    • Process name: Record
    • Life cycle stage status: Choice
    • result: String
    • message: String
    • Action Status: Object
    Fetch Created Jobs Action Fetches the process jobs in RPA Hub.
    • Process Number: String
    • Robots: Array[String]
    • Action Status: Object
    • Result: String
    • Jobs: Array[String]
    • startedRobots: Array[String]
    • pendingRobots: Array[String]
    Fetch Execution Status Action Fetches the execution status of a specific process job in RPA Hub. Process Job Number: String
    • Action Status: Object
    • ProcessJob: Object
      • Process Name: String
      • Robot Name: String
      • State: String
      • Started At: Date/Time
      • Completed At: Date/Time
      • Message: String
    • status: String
    • message: String
    Fetch Work Item Status Action Fetches the status of specific work queue items, asynchronously. Work Queue Item ID: GUID
    • Action Status: Object
      • Code: Integer
      • Message: String
    • WorkItem: Object
      • sysId: String
      • name: String
      • type: String
      • priority: String
      • status: String
      • lockedBy: String
      • additionalComments: String
      • requestContent: String
      • responseContent: String
      • deferredTill: Date/Time
      • sla: Date/Time
      • created: Date/Time
      • startedOn: Date/Time
      • completedOn: Date/Time
      • lastStartedTime: Date/Time
    • status: String
    • message: String
    Start Process Action Triggers a specific bot process in RPA Hub and returns the status.
    • Process Name: Record
    • Robots: Array[String]

      Ignore an entry in this field if a robot pool is assigned to the bot process.

      When invoking the Start Process Workflow Studio action, the robots that are in the In Maintenance life-cycle stage status are treated as failed robots.

    • Action Status: Object
    • Result: String
    • Robots: Array[String]
    • Process: String
    • Failed Robots: Array[Object]
    Stop Process Action Stops a bot process. If Graceful Stop is enabled, this action gracefully stops the bot process.
    • Result: String
    • Action Status: Object
    • Robots: Array[String]
    • Process: String
    • Failed Robots: Array[Object]
    Unassign User from Attended Automation Process Action Unassigns the user from the attended automation process.
    • Process Name: Record
    • Username: Record
    • status: String
    • message: String
    • Action Status: Object
    Unassign User from Attended Robot Action Unassigns the user from the attended robot and retires the attended robot. Username: Record
    • Action Status: Object
    • Status: String
    • Message: String
    Update Process Parameter Action Updates the Value field for the process parameter.
    • Process: Record
    • Parameter Name: String
    • Value: String
    • status: String
    • Action Status: Object
    • message: String
    Update WorkItem Action Updates work queue items.
    • Queue Name: Record
    • WorkItemID: String
    • Stage: String
    • DefferedTill: Date/Time
    • Name: String
    • Priority: Choice
    • Status: Choice
    • Request Content: String
    • Type: String
    • Remarks: String
    • SLA: Date/Time
    • Response Content: String

    The maximum limit for Request Content and Response Content fields is 8000 characters.

    If the Is Work Item Name Sensitive check box on the associated work queue form is selected, the data in the Request Content field is encrypted. Sensitive data with encryption is stored in the work item, so that it can be passed to the RPA Desktop Design Studio or robots.

    • IsNameExist: True/False
    • Status: String
    • Message: String
    • Action Status: Object
    Verify HashCode of a Package Version Verifies the HashCode of a package version in RPA Hub to validate the HashCode of the manually uploaded automation zip file with the associated package version record.

    For more information about verifying the HashCode of a package version, see Verify the HashCode of a package version in RPA Hub.

    Package Version: Record
    • Action Status: Object
    • Message: String
    • isAttachmentValid: True/False

    RPA Hub subflow

    The following table shows the detailed description, action input, and action output of RPA Hub subflow.

    Table 2. RPA subflow
    Subflow Description Subflow inputs Subflow outputs
    Import Package Version Attachment Subflow Imports the package version attachments automatically for a package version. To automatically migrate the package attachment (automation zip file) from a lower (non-production) to a higher (production) environment.

    For more information about importing a package version attachment in RPA Hub, see Import a package version attachment in RPA Hub.

    • Email: Email
    • Package Version: Record

    After the attachment is uploaded successfully or if an error occurs while uploading the attachment, an email notification (if email is provided as an input) is sent to the user who performs this import attachment action.

    Start Process Subflow Triggers a specific bot process in RPA Hub. Returns process job details.
    • Process Name: Record
    • Robots: Array[String]

      Ignore an entry in this field if a robot pool is assigned to the bot process.

      If a process job is not in the Running status, the robot that is associated with the process job is treated as Failed in the Start Process subflow output.

    • Failed Robots: Array[Object]
    • Stopped Robots: Array[String]
    • Pending Robots: Array[String]
    • Process Jobs: Array[String]
    • Result: String
    • Message: String
    Stop Process Subflow Triggers a specific bot process to stop in RPA Hub. Returns robots details and process job status. If Graceful Stop is enabled, this subflow gracefully stops the bot process.
    • Graceful Stop: True/False
    • Process Name: Record
    • Robots: Array[String]
    • Failed Robots: Array[Object]
    • Stopped Robots: Array[String]
    • Pending Robots: Array[String]
    • Process Jobs: Array[String]
    • Message: String
    • Result: String