UiPath has become one of the most popular automation platforms for robotic process automation (RPA), providing a wide scope of tools and functions which let companies automate repetitive tasks effectively. Two of the most essential things users will generally encounter in UiPath are dynamic selectors and machine keys. In this blog, let us explain what they are, how to use them, and how to get the machine key from UiPath.

What is a Dynamic Selector in UiPath?

A dynamic selector is a point of reference in UiPath to a selector that can actually follow changes in either the attributes or values of the UI elements in the event of adjustments.

Selectors are specific codes which UiPath uses for identification of UI components (like buttons, text boxes, or dropdowns) on the screen, Static selectors are based on fixed attributes such as the element's ID or name while dynamic selectors are made of variables or expressions which allow the selector to be more flexible and adaptive.

Why Use Dynamic Selectors?

• Handle Dynamic UI Elements: In numerous automation circumstances, the UI elements that are present may not have certain properties. For instance, the elements may have dynamic IDs or names over the changes of application loading. Such a dynamic selector is supposed to find these elements even they will have different attributes.
• Improve Reliability: In this case, using a dynamic selector means the automation remains invariant to the imaged perspective UI brings unto user steering the possibility of failure if some property of the elements changes to the minimum.
• Adapt to Different Environments: Dynamic selectors can be set according to the environment, where items may be a little bit different but some generalities between them still exist.

How to Create a Dynamic Selector

To create a dynamic selector, follow these steps:

• First of all, open UiPath Studio and select the activity that will launch the automation of the UI element (e.g., Click, Type Into, etc.).
• Find the 'Selector' property present in the Properties panel.
• To open the Selector Editor, click on the Edit Selector button.
• Make use of variables or expressions to allow dynamic content to certain parts of the selector. For example:

• To substitute static attributes (such as id=btn_123) you can use variables such as id={{variable_name}}.
• All the characters (* or ?) are the wildcard characters that help to give more options, e.g.,

Through the variables and wildcards in the selector, your selector will be more elastic and accommodative in case there is a change in the application interface.

How to Get Machine Key in UiPath

A Machine Key in UiPath is a different kind of identifier that is used to connect your UiPath robot with an Orchestrator instance. The machine key is mainly used for the secure connection between the UiPath Robot and Orchestrator so that the user manages and schedules automation processes. Below are the steps that will guide you to find your machine key.

Why You Need a Machine Key

• Connect Robots to Orchestrator: The machine key is a crucial component needed to connect your UiPath Robot and Orchestrator which is the program that receives and schedules the execution of processes communicated by robots.
• Manage Robots: Other than that, it allows the system administrators to make adjustments to robot settings; it allows the launching of jobs, and it also provides the administrators with the ability to monitor the execution of automation tasks.
• Licensing and Security: A machine key also ensures only authorized robots can join the Orchestrator, safeguarding the system from potential breaches.

Steps to Get Machine Key in UiPath

• Open UiPath Orchestr

- Log in to the UiPath Orchestrator instance. If you do not have permission to Orchestrator, work with the IT personnel or the RPA administrator to secure access.

Go to the Machines Page:

• Open the Orchestrator interface, navigate to the Tenant section, and click on Machines (left sidebar).

• Create a New Machine:

• In case you have not added the machine where your robot will be installed, you can do it by clicking on Add Machine. You have the choice of either a standard or a modern machine, if almost the latest updates of Orchestrator are being involved.

• Track down the machine key.

• When a piece of equipment is either built or picked, a one-of-a-kind machine key will appear in the Machine Key unobtainable.
• This Machine Key has to be properly copied as it will be a key element to configure UiPath Robot.

• Configure the Robot:

• Start UiPath Studio and look for the Robot settings.
• Press on Settings and type the Machine Key in the necessary field, together with the Orchestrator URL and any other needed credentials.

• Mobilize the Robot:

• Upon inputting the machine key, click on the “Connect” button in order to link your UiPath Robot to Orchestrator. If your robot has been connected, then it is prepared for performing tasks automatically.

Troubleshooting Machine Key Issues

• Incorrect Machine Key: Make sure your machine key is the same as the one registered on the Orchestrator for the corresponding machine.
• Connectivity Issues: In case the robot is not able to connect to Orchestrator, verify your internet connection and firewall settings.
• Robot Configuration: Re-confirm that the robot is correctly configured in Orchestrator and is associated with the right machine.

Conclusion

In UiPath, dynamic selectors provide a great feature for process automation of applications with mutable and unpredictable UI components, thus, making your automation more flexible and robust As well, the machine key is one important component for connecting your UiPath Robot with Orchestrator, which, in turn, makes it possible to easily manage and run automation workflows.

Through learning how to utilize dynamic selectors and to set up machine keys you can increase the reliability of your RPA projects and confirm that your robots are accurately connected and fully able to process tasks in any condition Regardless of your level of automation experience, these concepts are important for developing robust and scalable automation solutions.

Should you have any questions or would like further explanation on dynamic selectors or the machine key setup in UiPath, Just leave a comment below to get your queries resolved.