Customize UFT Developer runtime engine settings

The UFT Developer runtime engine is used for the Object Identification Center, the Application Model editor, for AI Object Inspection, and for running UFT Developer tests.

For details on customizing these settings when using UFT Developer in a grid configuration, see Set up and configure a UFT Developer grid machine or Configure a grid node's runtime engine settings.


You can configure UFT Developer runtime engine settings according to your needs. For example, you can decide which technology add-ins to load, change the default engine port, configure the connection to Digital Lab (UFT Mobile), or configure AI-based testing options.

Note: If you are running UFT Developer tests on remote computers, you must also set the relevant security connection options. These are set in a configuration file as described in Set up the remote computer.

To customize the engine settings

  1. Make sure the UFT Developer runtime engine is running. See Start/Stop the runtime engine.

  2. Open the UFT Developer settings dialog box in one of the following ways:

    • Right-click the UFT Developer runtime engine icon in the task bar and select Settings.

      Note: On Linux machines, if the icon is not available in the task bar, run the following command to open the dialog box: /opt/uftdeveloper/Tools/settings-leanft

    • In your IDE, select UFT Developer > Engine and Object Identification Settings.

  3. Modify the Engine settings as described below.

  4. Modify the Object Identification settings as needed.

    See Customize how to identify objects.

  5. Modify the Lab settings described below if you want to use Digital Lab (UFT Mobile) for your tests.

  6. When you save your changes, the UFT Developer runtime engine automatically closes and restarts with your new settings loaded.

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Engine settings

Configure the following options in the Engine tab:


Load only the add-ins needed for the technologies in your application. Loading add-ins that you don't need can slow performance, or in some cases cause conflicts with object identification.

The add-ins you select affect the technologies supported in the Object Identification Center as well as for tests that you run on the computer.

Note: For UFT Developer to recognize Oracle application objects, you must select both the Oracle Add-in and the Web Add-in.

Engine Connection

Configure the connection port and license options for the UFT Developer runtime engine:

Default port

Default = 5095.

If another application is listening on port 5095, change this value to an available port.

This change applies only to the runtime engine settings. If you change the value here, make sure your tests are also set to use that value. For details, see Modify the port used by UFT Developer.

To enable using UFT Developer in a multi-session environment such as a Windows server or a Citrix server, set up ports on each client. For details, see Configure ports for using UFT Developer in a multi-session environment.

Engine idle timeout

Default = 240 minutes.

When the timeout expires, the UFT Developer license is released and the runtime engine closes. While the engine is running, it always consumes at least one license.

To prevent the timeout expiration, clear the Engine idle timeout check box.

Max license consumption

Default = 1.

The maximum number of concurrent licenses this runtime engine is allowed to consume. For details, see Parallel tests and license consumption.

Runtime Settings

Configure options related to test runs:

Object synchronization timeout.

Default = 20 seconds.

This setting controls the maximum time (in seconds) that the runtime engine waits for an object to load before trying to run a step on it. When debugging tests, you may want to shorten this timeout.

Allow UFT Developer to run tests on a disconnected RDP computer

Select this check box if you are working with UFT Developer on a remote desktop client and the RDP connection is disconnected. The UFT Developer runtime engine supplies the credentials required to keep the remote machine active.

Enter your credentials and click Verify. The password you enter is stored in an encrypted format that is relevant only on the current computer.

Usage Data Collection

I want to help! Collect anonymous feature usage data. Configure whether or not to allow UFT Developer to send anonymous feedback to OpenText about your UFT Developer usage, as part of the UFT Developer improvement program. The data you provide helps us understand which improvements matter most.

For details, see Help improve UFT Developer.

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Lab settings

Configure the following options in the Labs tab:

Digital Lab Settings / UFT Mobile Settings

Provide the credentials to connect to the Digital Lab (UFT Mobile) server.

Digital Lab option

(UFT Developer 23.4 or later)

Specify whether you are connecting to UFT Digital Lab or ValueEdge Digital Lab. This selection affects the authentication options available below.

Server address

Your Digital Lab (UFT Mobile) server IP address or host name. Format example: server IP:port. By default, the port is 8080. Check the port settings defined on your Digital Lab (UFT Mobile) server.

If you are connecting to the UFT Developer server through SSL, the server address must start with https. For example:

Authentication type

Select whether to use Basic authentication (username & password) or Use access key as credentials when connecting to Digital Lab (UFT Mobile).

Select the authentication type required by your Digital Lab (UFT Mobile) server.


  • If you selected ValueEdge Digital Lab, only access key authentication is available.

  • In some UFT Developer versions, Use access key is displayed as Use execution token.

Access key


If you selected Use access key, enter the execution access key you received from Digital Lab (UFT Mobile).
Generate your access keys in the Digital Lab (UFT Mobile) Lab, as described in the Digital Lab Help Center.

An execution access key is associated with a specific tenant, which limits your testing to devices and apps in a specific Digital Lab (UFT Mobile) shared space.

User name and Password

If you selected Basic authentication, enter your credentials for logging into the Digital Lab (UFT Mobile) server.

In the User name, you can optionally specify a Digital Lab (UFT Mobile) project, workspace, or both:

  • If you belong to a specific project in Digital Lab (UFT Mobile), enter your user name in the following way: username#projectID.

    For details on retrieving your project ID, see Digital Lab (UFT Mobile) multi-projects.

  • If you want to limit your testing to devices and apps in a specific workspace, enter your user name in the following way: username#projectID/workspace or username/workspace.

    Specify Public workspace or the name of another workspace that you are assigned to. If you specify a workspace other than the public workspace, only the devices and apps in that workspace and in the Public workspace are available for recording, running, and device selection.

    For details on viewing the Digital Lab (UFT Mobile) workspaces to which you have access and the devices and apps assigned to them, see Workspaces in the Digital Lab (UFT Mobile) lab console.

The Password is encrypted automatically when you save the settings.


Click to check that UFT Developer can connect to the Digital Lab (UFT Mobile) server.

If Digital Lab (UFT Mobile) runs behind a proxy server, select Use proxy, and enter the information in Proxy Settings.

Do not validate certificate

By default, UFT Developer employs Full SSL (Strict). However, you can select this option in order to ignore certificate errors.

Show remote access window when the test runs

Select to enable watching your test runs on the devices in the Digital Lab (UFT Mobile) remote access window.

To improve test execution performance, clear this option to run tests silently. You can still watch the steps being performed on the device itself if it is located near you. You can also add Device.OpenViewer/CloseViewer steps to open or close the remote access window during a run.

Proxy Settings

If Digital Lab (UFT Mobile) is running behind a proxy server, then you must configure the proxy settings:

Address The IP address and the port of the proxy server.
User name

Credentials for the proxy server.

Password Credentials for the proxy server. The password is encrypted automatically when you save the settings.

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AI Object Detection Settings

Configure the following options in the AI Object Detection tab:

UFT Developer 2023 or earlier: Configure these settings in the AI tab:

Enable AI Object Detection

UFT Developer's AI Object Detection features are enabled by default. You can clear the Enable AI Object Detection option to disable these features.

Changes you make in this option take effect only after you restart UFT Developer.

UFT Developer 2023 or earlier: This setting is named Enable AI Features.

Enable caching for object identification

By default, UFT Developer uses a caching mechanism for AI object identification during test runs, to improve performance.

You can clear this option to disable the caching mechanism if you don’t find it useful in your case.

Scroll Settings

Enable automatic scrolling

Select this option to enable automatic scrolling. When running a test, if an object is not displayed in the application but the web page or mobile app is scrollable, UFT Developer automatically scrolls further in search of the object.

Default: Selected.

You can customize the direction and extent of the scrolling, using the options below.

Direction The direction in which to scroll. Default: Down.
Max scrolls

The maximum number of pages or screens to scroll. Default: 2.

Tip: You can temporarily override these global settings in a test run, by adding AI run settings steps to your test. For details, see the AIRunSettings Class in the Java and JavaScript SDK references.

AI Text Recognition Settings

OCR is used when identifying text in the application, when using text to identify a specific object, and when retrieving text from the application.

Note: AI Text Recognition does not use the ABBYY OCR engine.

Define the list of languages UFT Developer should identify. Add languages to the list or remove them, and drag items up or down in the list to specify priority.

Supported languages: Afrikaans, Arabic, Basque, Bulgarian, Catalan, Chinese, Traditional Chinese, Croatian, Czech, Danish, Deutsch, Dutch, English, Esperanto, Estonian, Finnish, French, Greek, Hebrew, Hungarian, Icelandic, Italian, Irish, Japanese, Korean, Latin, Latvian, Lithuanian, Macedonian, Maltese, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovenian, Slovak, Spanish, Swedish, Turkish, Ukrainian, Welsh

Tip: You can temporarily override these global settings in a test run, by adding AI run settings steps to your test. For details, see the AIRunSettings in the Java and JavaScript SDK references.

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See also: