Update People picker column using REST API in Power Automate

Question

How to update people picker column using REST API in Power Automate?

I have three people picker column in SharePoint.

Answer 1

Using REST API, You can update People or Group field by setting field with user or group ID.

Considering field name is AssignedTo, the format for user field value:

Single-valued user field: 'AssignedToId' : 1

Multi-valued user field: 'AssignedToId' : { 'results': [1, 2, 3] }

Where 1, 2, 3 are ID of users/groups.

Example:

References:

1. Update a people field in a SharePoint List using REST API using Power Automate
2. HOW TO UPDATE THE SHAREPOINT PEOPLE PICKER FIELD USING POWER AUTOMATE

Answer 2

You could choose to use Update Item action in flow.

1. Set a people field in SharePoint with Power Automate when all you have is a user’s name.
2. FLOW UPDATE MULTI-SELECT COLUMN

If you have got the user information in the previous actions, you could find them here.