Power Platform Community Forum Thread Details

Hi,

I'm using an remote windows server to run some scheduled desktop workflows triggered by the windows scheduler.

When i'm with the RDP opened, the flow succesfully ran the UI action, but when i'm not, its returns:

Problema ao executar a ação 'PressButton'. Falha ao pressionar botão (erro ao pressionar botão)

Microsoft.PowerPlatform.PowerAutomate.Desktop.Actions.SDK.ActionException: Falha ao pressionar botão (erro ao pressionar botão) ---> Microsoft.Flow.RPA.Desktop.Modules.UIAutomation.Common.Exceptions.OperationInNonInteractiveModeException: Can't use this action in non interactive mode
em Microsoft.Flow.RPA.Desktop.Modules.UIAutomation.Common.Utilities.UIAutomationUtilities.EnsureThatDesktopInteractionIsPossible(UIATypeEnum uiaType, Boolean isLegacyWindowAction)
em Microsoft.Flow.RPA.Desktop.Modules.UIAutomation.Common.Proxy.LocalAutomationRuntime.PressButtonInWindow(UIRuntimeElement element)
--- Fim do rastreamento de pilha do local anterior onde a exceção foi gerada ---
em System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
em Microsoft.Flow.RPA.Desktop.Modules.UIAutomation.Common.Proxy.UIAutomationRuntimeRouter.Invoke(MethodInfo targetMethod, Object[] args)
--- Fim do rastreamento de pilha do local anterior onde a exceção foi gerada ---
em System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
em System.Reflection.DispatchProxyGenerator.Invoke(Object[] args)
--- Fim do rastreamento de pilha de exceção remota ---
em Microsoft.Flow.RPA.Desktop.Modules.UIAutomation.Common.Proxy.RemoteAutomationRuntimeProxy.Invoke(MethodInfo targetMethod, Object[] args)
--- Fim do rastreamento de pilha do local anterior onde a exceção foi gerada ---
em System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
em System.Reflection.DispatchProxyGenerator.Invoke(Object[] args)
em Microsoft.Flow.RPA.Desktop.Modules.UIAutomation.Common.UIAutomationActionBase.PerformAutomation(Action`2 action, UIControl control, Boolean logAction)
em Microsoft.Flow.RPA.Desktop.Modules.UIAutomation.Actions.PressWindowButton.Execute(ActionContext context)
--- Fim do rastreamento de pilha de exceções internas ---
em Microsoft.Flow.RPA.Desktop.Modules.UIAutomation.Actions.PressWindowButton.Execute(ActionContext context)
em Microsoft.Flow.RPA.Desktop.Robin.Engine.Execution.ActionRunner.Run(IActionStatement statement, Dictionary`2 inputArguments, Dictionary`2 outputArguments)

The server's user is always logged on.

Categories:

Power Automate Desktop

Non-interactive mode means that the screen is not active when the flow runs and that UI actions cannot be performed. This would normally work fine when you are signed in, or if you were to run the flow from the cloud in unattended mode (assuming you have the unattended RPA add-on), as the flow would initiate a sign in on the machine.

But when it's the Windows Task scheduler triggering the flow, there is no sign in activity being performed. So, if you have closed your remote desktop session (which will usually lead to the user being signed out from the VM), your flows will not be able to run this way.

What you would need to do in such a case is build the schedule in cloud flows (I assume you have a paid license, as that would anyhow be needed to launch a PAD flow from the Windows Task scheduler) using unattended mode.

An alternative could also be changing the parameters of the machine to never get locked and go to sleep, and then signing in to a machine with a different remote management software that does not cause a logoff event after you close your session. Some samples of that include TeamViewer, AnyDesk and similar apps. However, you should note that this is a security issue, because if anyone unauthorized gets access to the machine, they would also have access to your account, too.

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