Extract Text From Combo Box

Good Morning.I was making some changes to a project and came across a problem that I liked that someone could help me. I have a combo box that will be fed with the variable user ID, this combo will display the USERName. This will serve to choose the user that made a certain reservation, and then when I do save presents me a modal that is an overview of my review, how can I in the modal access the text of the combo box, being that the variable to be fed is the UserId and not the UserName ??

Combo is the employee combo

Hi Gonçalo,

Just create an aggregate to get the user by his Id, which you have in the variable that is bound to the combobox. In your modal, create an expression that displays the username from that aggregate.