Execute a procedure when loading a WorkWith Smart Device in Genexus Ev3

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I'm working in a Genexus Smart Device app for Android. I need to display a message on the screen and this message is a result from a procedure. I'm working with a WorkWith Smart Device and the procedure returns the message in a variable that is displayed in the layout. I have called the procedure from the ClientStart, Load, Refresh and Start events for the pattern but the message is not displayed when the form loads. I tried the procedure whith a button and the message appears correctly. The procedure has one parameter and is an attribute received as parameter for the work with.

What could I be doing wrong?

Thank you

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