I develop an application on powerApp that allows you to fill in SharePoint lists via forms.
My project contains several lists Sharepoint (Tb_B ... etc), and each line of each list is connected to an ID by a column type "search" which corresponds to a site (Tb_A) (see the typical illustration of what I want in the attachment)
My problem is the following: When I want to update the field "ID_ChantierCible" which must be filled from another field it does not update in my sharepoint list.
I performed some test:
[LookUp (CollectName; Title = DataCard.Selected.Title) .ID] that fill the field well but do not update the sharepoint list or to say that my field "ID" is equal to the value of another field Input (Invisible of type Number) but I have an error because my fields ID is basic a comboBox I also tried to change the type of my DataValue to TextInput type, the value appears but the field is not updated in the sharepoint list.