403 Error Calling HDL uploadFile REST API via AI Agent

Summary:

Hi Community,

I'm trying to call the HDL REST API below from an AI Agent:

POST /hcmRestApi/resources/11.13.18.05/dataLoadDataSets/action/uploadFile

The user testing the AI agent has the roles/prerequisites listed in the HDL REST API documentation (Overview of Automating Data Loading), but the call returns:

{  "output": {    "responseStatus": 403,    "response": ""  }}

The AI agent output when testing is:

{
"choices": [
{
"index": 0,
"message": {
"content": "I will start by uploading the spreadsheet file named test.zip. Proceeding with the upload now.",
"role": "assistant",
"tool_calls": [
{
"id": "call_o8uPedtRe7o7n5pWAoy03hE4",
"function": {
"arguments": {},
"name": "doall_uploadFile_dataLoadDataSets"
},
"type": "function"
}
]
},
"finish_reason": "tool_calls"