Hi @AhmadHammoud85 ,
I assume Category is dropdown field and Assigned to is the text field in your canvas app. if my assumption is correct then you can achieve the requested functionality as below:
onChange property of Dropdown write expression as :
Switch(dropdown1.selected.value,"Server",Set(varAssignedTo,"UserServer@email.com","Printer",Set(varAssignedTo,"UserPrinter@email.com",.............)
you can add as many as required.
In the Text property of Assigned to component set it as varAssignedTo.
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Regards,
Pavan Kumar Garlapati