Sharepoint REST ValidateUpdateListItem return error response

Question

any help would be appreciated Thank you

SharePoint 2019 on-premise

I'm making a REST request using ValidateUpdateListItem to update Author and Editor; however, I'm getting an error message: Multiple entries matched; please click to resolve. In the response, the user with that email only has one record.

Note: Window's Authentication and Claims Web application configure for a single site collection.

Request:

_api/web/GetList(@path)/items(5)/ValidateUpdateListItem()?@path=%27/sites/Some Documents%27

Formatted data
{
   "formValues":[
      {
         "__metadata":{
            "type":"SP.ListItemFormUpdateValue"
         },
         "FieldName":"Created_x0020_By",
         "FieldValue":"i:0e.t|original-issuer|[email protected]"
      },
      {
         "__metadata":{
            "type":"SP.ListItemFormUpdateValue"
         },
         "FieldName":"Author",
         "FieldValue":"[{'Key':'[email protected]'}]"
      },
      {
         "__metadata":{
            "type":"SP.ListItemFormUpdateValue"
         },
         "FieldName":"Created",
         "FieldValue":"09/15/2022 04:27 PM"
      },
      {
         "__metadata":{
            "type":"SP.ListItemFormUpdateValue"
         },
         "FieldName":"Modified_x0020_By",
         "FieldValue":"i:0e.t|original-issuer|[email protected]"
      },
      {
         "__metadata":{
            "type":"SP.ListItemFormUpdateValue"
         },
         "FieldName":"Editor",
         "FieldValue":"[{'Key':'[email protected]'}]"
      },
      {
         "__metadata":{
            "type":"SP.ListItemFormUpdateValue"
         },
         "FieldName":"Modified",
         "FieldValue":"09/15/2022 04:27 PM"
      }
   ],
   "bNewDocumentUpdate":true
}

Response:

{
   "d":{
      "ValidateUpdateListItem":{
         "__metadata":{
            "type":"Collection(SP.ListItemFormUpdateValue)"
         },
         "results":[
            {
               "ErrorMessage":null,
               "FieldName":"Created_x0020_By",
               "FieldValue":"i:0e.t|original-issuer|[email protected]",
               "HasException":false
            },
            {
               "ErrorMessage":"Multiple entries matched, please click to resolve.",
               "FieldName":"Author",
               "FieldValue":"[{'Key':'[email protected]'}]",
               "HasException":true
            },
            {
               "ErrorMessage":null,
               "FieldName":"Created",
               "FieldValue":"09/15/2022 04:27 PM",
               "HasException":false
            },
            {
               "ErrorMessage":null,
               "FieldName":"Modified_x0020_By",
               "FieldValue":"i:0e.t|original-issuer|[email protected]",
               "HasException":false
            },
            {
               "ErrorMessage":"Multiple entries matched, please click to resolve.",
               "FieldName":"Editor",
               "FieldValue":"[{'Key':'[email protected]'}]",
               "HasException":true
            },
            {
               "ErrorMessage":null,
               "FieldName":"Modified",
               "FieldValue":"09/15/2022 04:27 PM",
               "HasException":false
            }
         ]
      }
   }
}

Answer 1

The field value should be in this form:

"FieldValue": "[{'Key':'i:0#.w|[email protected]'}]"

Please see Update file metadata with Rest API using ValidateUpdateListItem in SharePoint on-premises for more information.