Error Action "Invite External User to SharePoint"

Actions
1

Hello,

we had this action in our Power Automate working until today, but now we are getting this error: “Forwardable PFT token is not available: Forwardable user token not available.“

Could anyone help us?

Thanks

RAW INPUT:

{
"host": {
"connectionReferenceName": "shared_plumsailsp",
"operationId": "FlowV1SharePointFlowJobsInviteExternalUserToSharePointPost"
},
"parameters": {
"target": "Item",
"request/ListUrl": "https://---.sharepoint.com/sites/QHSEDevelopments/Supplier_Questionnaire_Attachments",
"request/ItemId": 1111,
"request/EmailAddresses": "---@gmail.com",
"request/RoleName": "Contribute",
"request/SPUrl": "https://---.sharepoint.com/sites/QHSEDevelopments"
}
}

RAW OUTPUT:

{

"statusCode": 400,

"headers": {

    "Transfer-Encoding": "chunked",

    "x-jobid": "4EF7CBEC3A2AE7449FDB8",

    "Date": "Mon, 26 Jan 2026 09:53:56 GMT",

    "Referrer-Policy": "strict-origin-when-cross-origin",

    "Content-Type": "application/json; charset=utf-8",

    "Content-Length": "232"

},

"body": {

    "request": {

        "url": null,

        "traceId": "4EF7CBEC3A2AE7449FDB8"

    },

    "error": {

        "code": "ApplicationResultException",

        "message": "Forwardable PFT token is not available: Forwardable user token not available.",

        "date": "2026-01-26T09:53:56.3370401Z"

    }

}

}

2

Hello! I am sorry for the incident. It is caused by deprecating the legacy authentication API keys. We are working on implementing delegated permissions for Actions and that will take a month or two. I will notify you in this topic once the work is finished.

3

Hello, any update about this issue?

Thanks

4

Hello @TesmecIT

We're still working on a fix, but you can use an Admin API key to get it working.
Please check the blog post for more details

Best regards,
Petr
Plumsail team

5

We have implemented the new type of the API key. It is already available in Plumsail accounts.

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