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Update field from another field - however people picker is involved !!

I have a customized sharepoint list form and am trying to do the following


1.  When someone picks an item from a choice field a corresponding person is automatically selected (from another data source in the app.) and added to a people/person field


I can get that part to semi-work !!  as in I can populate the field with the correct person using the following formula as the default for the people/person field (If I change the people field to be a text input field !)




However what I can't do is get this to write back to the sharepoint list?  No error messages but if I add an item to the list the field is not updated ?  I know people fields are notoriously tricky so maybe I need to go at it another way?


What I really want to achieve is that when someone adds a new item to the list and makes a choice from a dropdown then a people field updates with a particular person.  Reason being I need this to create a filtered view using [Me] for someone accessing the list at a later stage.  Hope you can follow that.


any ideas   thanks



Community Support Team
Community Support Team

Re: Update field from another field - however people picker is involved !!

Hi @vffdd ,


The result of this formula only contains the DisplayName of the people. But to update a person and group field, you need multiple values. You need to use Patch to update the record rather than Submit function. The formula should be something like:


Patch(List,Default(List),{ TitleSmiley Very HappyataCardValue9.Text,
       Person: {'@odata.type':"#Microsoft.Azure.Connectors.SharePoint.SPListExpandedUser",





Community Support Team _ Mona Li
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.
Super User
Super User

Re: Update field from another field - however people picker is involved !!

Hi @vffdd , 


For solving this scenario, you can use the Office365 connector to fetch the user details and modify the datacard of the person/people field instead of the field_datacard value,  As the value is being fetched from the parent (that is the datacard).
If(SharePointForm1.Mode = New,LookUp(Office365Users.SearchUser(),DisplayName = User().FullName),ThisItem.Approver)
In the above expression, Approver is my sharepoint list column of type Person/Group. You can put this expression as shown in the screenshot below: MicrosoftTeams-image (31).png


Hope this Helps!


If this reply has answered your question or solved your issue, please mark this question as answered. Answered questions helps users in the future who may have the same issue or question quickly find a resolution via search. If you liked my response, please consider giving it a thumbs up. THANKS!

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