I want to display the value "01" in Power Automate Desktop, and then add one to it and display the value "02", until the value "99" is reached and displayed.
If you know how to do it, can you tell me?

I want to display the value "01" in Power Automate Desktop, and then add one to it and display the value "02", until the value "99" is reached and displayed.
If you know how to do it, can you tell me?
Make use of the Pad text to pad the counter variable with 0.
Paste the below code into a blank Flow editor to get the above actions.
NewCounter is the variable that you need.
SET Counter TO 1
LOOP WHILE (Counter) <= (99)
Text.Pad Text: Counter PadPosition: Text.PadPosition.Left PaddingText: 0 TotalLength: 2 PaddedText=> NewCounter
Display.ShowMessageDialog.ShowMessage Message: NewCounter Icon: Display.Icon.None Buttons: Display.Buttons.OK DefaultButton: Display.DefaultButton.Button1 IsTopMost: False ButtonPressed=> ButtonPressed
Variables.IncreaseVariable Value: Counter IncrementValue: 1
END