I also tried to pass the email id from the person type field i.e. Responsible, but I am still getting that error, copied below:
"statusCode": 404,
"headers": {
"Cache-Control": "no-store, no-cache",
"Pragma": "no-cache",
"Set-Cookie": "ARRAffinity=0ba5f194be62197898c0733a8e9f81a2838fdd0f680b84e868ccf93e54b4fa64;Path=/;HttpOnly;Secure;Domain=sharepointonline-ne.azconn-ne-003.p.azurewebsites.net,ARRAffinitySameSite=0ba5f194be62197898c0733a8e9f81a2838fdd0f680b84e868ccf93e54b4fa64;Path=/;HttpOnly;SameSite=None;Secure;Domain=sharepointonline-ne.azconn-ne-003.p.azurewebsites.net",
"Strict-Transport-Security": "max-age=31536000; includeSubDomains",
"x-ms-request-id": "0ffc0ca1-4055-8000-25e9-dcb5d39fc6ab",
"X-Content-Type-Options": "nosniff",
"X-Frame-Options": "DENY",
"Timing-Allow-Origin": "*",
"x-ms-apihub-cached-response": "true",
"x-ms-apihub-obo": "false",
"Date": "Sun, 18 Feb 2024 18:56:56 GMT",
"Content-Length": "460",
"Content-Type": "application/json",
"Expires": "-1"
},
"body": {
"status": 404,
"message": "Cannot find resource for the request ValidateUpdateListItem.\r\nclientRequestId: a30c45b8-a5d5-43df-9086-e731a8b7ac42\r\nserviceRequestId: 0ffc0ca1-4055-8000-25e9-dcb5d39fc6ab",
"source": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/_api/web/lists/GetByTitle('ECL%20test')/items/ValidateUpdateListItem",
"errors": [
"-1",
"Microsoft.SharePoint.Client.ResourceNotFoundException"
]
}
}
Kind regards.