How to update a sharepoint multi value person/group field with graph

Question

I want to update a multi value person field within a SharePoint list. I use the following code. But nothin will hapen. I can update a single value person field but i am unable to update a multi value field. Also Co-pilot doesn't give me much help.

# Create the request body
$body = @{
    "multiperson" = "******@xxxxx.com"
} | ConvertTo-Json

# Create the request headers

# Compose the request URL
$url = "https://graph.microsoft.com/v1.0/sites/$siteId/lists/$listId/items/$itemId/fields/"

# Send the PATCH request
Invoke-MgRestMethod -Uri $url -Method Patch -Body $body

Answer 1

Hi @Ferdieh,

To update a SharePoint multi value person/group field with graph, please take a reference to the below threads.

• How to update a Lookup field and a user field in SharePoint with Microsoft Graph?
• How do I update the value of Person or Group columns in SharePoint lists using the Microsoft Graph API?

You need to specify the data type first and pass the ids as an array for multi-valued Person/group field.

Url: https://graph.microsoft.com/v1.0/sites/{site-id}/lists/{list-id}/items/{item-id}/fields    
Method: PATCH 
{
    "******@odata.type": "Collection(Edm.String)",
    "CategoryLookupId":["1","2"]
}

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