Issue with POST API to Appsheet

[Sattavut_Sudarc]

I have an error in AuditHistory after a successful POST Invoking Appsheet REST API from external services.
The error in Audit History is

Action Details
Email Details
REST API:
{
"Action": "Add",
"Properties": {},
"Rows": []
}

Properties:
{
"RestAPIVersion": 2,
"TableName": "OpendateTransactions",
"AppTemplateVersion": "1.000792",
"Action": "Add",
"Errors": "API 'Properties' does not have unexpected Type of 'JObject'. Value is: '{\r\n \"Action\": \"Add\",\r\n \"Properties\": [\r\n \"Locale\",\r\n \"RunAsUserEmail\"\r\n ],\r\n \"Rows\": [\r\n \"JobNumber\",\r\n \"Staff\",\r\n \"Task\",\r\n \"Remarks\",\r\n \"StoreType\",\r\n \"EstimatedCJSuperOD\"\r\n ]\r\n}'",
"AppTemplateName": "0d95f26c-4ebd-4e28-8743-93e3d0569ac6",
"Operation": "REST API invoke",
"RecordType": "Start",
"Result": "Failure"
}

[Joseph_Seddik]

The error seems to say you are missing column values; I don't see values for any column in the created row. Did your request include the values? could you share the request? thanks.