The list value specified in the "Set drop-down list value in window/on web page" action can't be found at runtime

This article provides a resolution for an issue where the Set drop-down list value in window action fails with the "UIAutomation.SelectOptionInDropDownError" error code or the Set drop-down list value on web page action fails with the "WebAutomation.SetDropDownListValueError" error code because the list value in both actions can't be found.

Applies to:   Power Automate

Symptom 1

The Set drop-down list value on web page or Set drop-down list value in window action fails with the following error message:

Failed to perform the requested operation on the drop-down list. Drop down list was not found.

Cause

The selector of the drop-down element fails to locate the drop-down UI element successfully. The element's selector might be incorrect.

Resolution

Use Test selector in the selector builder window to check if the element selector of the drop-down element is correct. If the selector is invalid, use the Repair option to fix it. This resolution applies to both the UI automation and Browser automation group actions.

Symptom 2

The Set drop-down list value on web page or Set drop-down list value in window action runs successfully, but the option element isn't selected, and no error occurs during runtime.

Cause

The Set drop-down list value on web page or Set drop-down list value in window action fails to select the option element from the drop-down list.

Resolution

• For the actions of the UI automation and Browser automation groups, try the following options in order:

  Option 1: If you've set the Operation input parameter with the Select option(s) by name value, try to use the Select options by index value by providing a specific index of the element in the drop-down list.

  Option 2: If option 1 doesn't fix the issue, replace the Set drop-down list value on web page action with two successive Click UI element in window or Click link on web page actions.

  • The first Click UI element in window (UI automation) or Click link on web page (Browser automation) should use an element (usually an arrow button) that can expand the list of options.
  • The second Click UI element in window (UI automation) or Click link on web page (Browser automation) should use an option element that needs to be selected.

  Option 3: If the above two options don't fix the issue, and the drop-down list has filter functionality, you can type text or part of the text in the drop-down list to get some suggestions for selection.

  • Use the Populate text field in window action in UI automation. Set the Text Box parameter using the drop-down list element, and set the Text to fill-in parameter using the text shown in the corresponding option.
  • Use the Populate text field on web page action in Browser automation. Set the UI Element parameter using the drop-down list element, and set the Text parameter using the text shown in the corresponding option.

• For the actions of the UI automation group, try these steps:

  1. Use the Click UI element in window action to send a click to the drop-down list to get focus.
  2. Use the Send Keys action. Set the Send keys to option as the Foreground window, and use the text shown in the corresponding option to set the Text to send option, followed by {Enter}.