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Rest API Multiple Person Field

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Posted on by srduval

1,760 Moderator

Trying to use flow action send HTTP request to update a multiple person field in a sharepoint list. The list item was created previously and I want to update the list item field when based on a previously defined trigger.

API URI

https://xxx/sites/xx/Departmental_xxx_xxxs/_api/web/lists/getbytitle('BI_xxx_Collector')/items('25')

Headers:

{

"accept": "application/json;odata=verbose",

"content-type": "application/json;odata=verbose",

"If-Match": "*"

}

For simplicity, I've hard coded two user ids into the body.

{
"__metadata": { "type": "Collection(Edm.Int32)" },
Assigned_ToId: { "results": ["36","42"] }
};

I get this error message :

{

"status": 400,

"message": "Incompatible type kinds were found. The type 'Collection(Edm.Int32)' was found to be of kind 'Collection' instead of the expected kind 'Entity'.\r\nclientRequestId: 920d0cfd-4eac-443c-a644-c71781a0ad6a\r\nserviceRequestId: 2c8c489f-3043-a000-2df7-4b8a70b333f6",

"source": "https://*/sites/*/Departmental_Report_Lists/_api/web/lists/getbytitle('BI_Request_Input_Collector')/items('25')",

"errors": [

"-1",

"Microsoft.SharePoint.Client.InvalidClientQueryException"

]

}

any ideas on how to make this work? I've done several iterations of this code, and this is the closest i've come to a working script. Any help would be greatly appreciated.

Categories:

Building flows

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sudharsan1985 1,325 on at

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Hi @srduval
The '__metadata' should follow the below structure with the list entity name
'__metadata': { 'type': 'SP.Data.Mandatory_x0020_ReadsListItem' }
My list name is 'Mandatory Reads', you can find the entity name of the list by using the below url and replace the siteurl and 'List Title'
https://<siteurl>/_api/web/lists/GetByTitle('List Title')?$select=ListItemEntityTypeFullName
You have to pass the Id's of the people as an integer array not string array.
Try the above, it should work

Hope it helps, please like it or mark it as a solution if it resolves ur clarification or issue
-Sudharsan K...

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v-bacao-msft on at

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Hi @srduval ,

Please try to refer to the following article to create HTTP request:

updating-a-multi-people-field-in-sharepoint-with-microsoft-flow

Then you could check this similar thread to get the correct value of the type:

Flow-Error-Send-HTTP-Request-to-SharePoint-to-Clear-out-a-Person

Please take a try again and check if the issue still exists.

Best Regards,

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srduval 1,760 Moderator on at

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Thanks @v-bacao-msft your link is what I've been searching for since I started this flow. @sudharsan1985 you got me 1/2 way there so thanks as well.

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