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Can you patch an external user to a SharePoint list

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Posted on by NicolleAbraham

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Hi everyone,

Is there a way to patch an external user to a SharePoint list? When I try to do it I get the Network Error the requested operation is invalid.

TIA

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Building Power Apps

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vipuljain03 673 Super User 2026 Season 1 on at

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You can use the Patch for an external user, however there are few things to check beforehand, as external users in SharePoint Online have unique characteristics that require specific handling.

1. Verify External User Access
Before patching, ensure that:

The external user has been invited to your SharePoint site.

They have accepted the invitation and their account appears in your SharePoint site's People and Groups directory.

2. Use the below syntax to Patch the external user

Patch( YourSharePointList, Defaults(YourSharePointList), { PersonOrGroupColumn: { '@odata.type': "#Microsoft.Azure.Connectors.SharePoint.SPListExpandedUser", Claims: "i:0#.f|membership|user@externaldomain.com", DisplayName: "User Name", Email: "user@externaldomain.com" } } )

3. Ensure the User Exists in SharePoint

The external user must exist in the site's User Information List. If not, the patch will fail.

4. Permissions in SharePoint

Ensure that the external user has Contribute or Edit permissions on the site or list, depending on the action you are performing.

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Thanks,
Vipul

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vipuljain03 673 Super User 2026 Season 1 on at

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@NicolleAbraham

Please click Accept as solution if my post helped you solve your issue. ✔️ This will help others find the solution to this problem. It also closes the item.

If the content was useful in other ways, please consider giving it Thumbs Up. 👍

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