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I've created an app in sharepoint and want this app to query the site users list: https://test.sharepoint.com/_api/web/siteusers. I've given the app the following permissions in the app's Permission Request XML using this URL: https://test.sharepoint.com/_layouts/15/AppInv.aspx

    <AppPermissionRequests>
    <AppPermissionRequest Scope="http://sharepoint/content/sitecollection/web" Right="FullControl" />
</AppPermissionRequests>

So basically I trigger a flow when something is added in a sharepoint list and I get the access token by running a post request to https://accounts.accesscontrol.windows.net/common/tokens/OAuth/2 combining the clientid,appid and tenantid from the sharepoint app I created, in the body of the request.

I then use this access code below to query the site user list

When I run a get request in flow or in fiddler:

GET https://test.sharepoint.com/_api/web/siteusers
Accept: application/json;odata=verbose
Content-Type: application/json;odata=nometadata
Host: test.sharepoint.com
Authorization: Bearer <access code>

I get the following:

"Access denied. You do not have permission to perform this action or access this resource." or {"odata.error":{"code":"-2147024891, System.UnauthorizedAccessException","message":{"lang":"en-US","value":"Access denied. You do not have permission to perform this action or access this resource."}}}

Can anyone point me in the right direction?

Thanks.

0

You may use AllowAppOnlyPolicy="true" to elevate privileges.

Check this link for more details.

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