Skip to main content
Community site session details

Community site session details

Session Id :
Power Automate - Using Flows
Unanswered

Updating multivalue lookup column

(1) ShareShare
ReportReport
Posted on by 6

So I am trying to update a lookup column in a list that can hold multiple values. And I can not figure it out for the life of me.

DevanKSmith_0-1720641439611.png

 

This is what I am trying to do. The variable ChildList is an array of Id's it looks as such [{Id: 'theactualid'},{},{}]. 
What could Ibe doing wrong or do I need to change?

  • Suggested answer
    David_MA Profile Picture
    11,767 Super User 2025 Season 1 on at
    Updating multivalue lookup column
    You need to get your variable to return the values so they are formatted like this:
    {
        "formValues": [
            {
                "FieldName": "Animals",
                "FieldValue": "Dog;Cat;Mouse"
            }
        ]
    }
    If your variable doesn't include the parentheses but just the semicolon separated values, put the variable inside quotes in the body of the HTTP request.
  • DevanKSmith Profile Picture
    6 on at
    Re: Updating multivalue lookup column

    I am dynamically taking in the list name from power apps and when doing that the update Item doesn't populate all the columns of that list like it would if you choose the list from the options presented. 

  • Michael E. Gernaey Profile Picture
    44,766 Super User 2025 Season 1 on at
    Re: Updating multivalue lookup column

    Hi @DevanKSmith 

     

    Welcome. Just curious why not use Update Item, versus making the call?

    It would be much easier to do with Update Item.

     

    Are you open to doing that?


    If I have helped you, I would really appreciate if you please Mark my answer as Resolved/Answered, and give it a thumbs up, so it can help others

    Cheers

    Thank You
    Michael Gernaey MCT | MCSE | MCP | Self-Contractor| Ex-Microsoft
    https://gernaeysoftware.com
    LinkedIn: https://www.linkedin.com/in/michaelgernaey

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

Quick Links

Paul Stork – Community Spotlight

We are honored to recognize Paul Stork as our July 2025 Community…

Congratulations to the June Top 10 Community Leaders!

These are the community rock stars!

Announcing the Engage with the Community forum!

This forum is your space to connect, share, and grow!

Leaderboard > Power Automate

#1
Michael E. Gernaey Profile Picture

Michael E. Gernaey 497 Super User 2025 Season 1

#2
David_MA Profile Picture

David_MA 436 Super User 2025 Season 1

#3
Riyaz_riz11 Profile Picture

Riyaz_riz11 244 Super User 2025 Season 1

Featured topics

Restore a deleted flow