Lookup Person columns from another SharePoint List

[RodM]

I have 2 SharePoint lists with the same 3 Person fields (Employee, Supervisor, Manager), and I'd like to use one of the lists as a lookup based on the "Employee" selected.

Ex: User finds and selects the Employee from the people picker, and the other people pickers will auto-populate based on the related Supervisor and Manager in the new item form created by a formula in Default.

I tried my best to follow this blog post but could not comprehend the points they were making:
Defining default values for complex SharePoint types in forms | Microsoft Power Apps

[WarrenBelz]

Hi @RodM ,

You cannot use a Person (or any other complex type) field in another list for a Lookup in SharePoint. I actually never use Lookup fields in SharePoint as you can do the Lookup in Power Apps. 

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[RodM]

Yes, I'm not trying to do the lookup in SharePoint, I'm trying to do the lookup in my PowerApp.

How am I able to lookup items on another list, by referencing a Person column within PowerApps?

[WarrenBelz · Accepted solution]

Hi @RodM ,

Can you please share (in Text) the code you have attempted. You would need something like (I am guessing the control output here)

LookUp(
   YourSPList,
   YourPersonField.DisplayName = YourDropDown.Selected.DisplayName
)

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[RodM]

@WarrenBelz ,
Thank you!, I was able to figure it out, this is what worked:

LookUp('QA Scoring List',DataCardValue129.Selected.DisplayName = Employee.DisplayName,'Assigned Supervisor')