Apply a cash advance - REST API for Oracle Financials Cloud

Summary

I am having trouble using an expense reporting REST API to Apply a cash advance. ERROR: "Invalid operation creation for the specified resource."

Content

Good night,

I need to apply a cash advance to an expense report. However, I am having trouble using an expense reporting API. I'm parameterizing like this:

POST:  <http-cloud> /fscmRestApi/resources/11.13.18.05/expenseReports/{ExpenseReportId}

Body-JSON:
{
    "name": "applyCashAdvances",
    "parameters": [
        {
            "cashAdvanceNumber": "value"
        }
    ]
}

However, it displays the following error:

"Invalid operation creation for the specified resource."

I already consulted Documents in the link below, but I was not successful:
https://docs.oracle.com/en/cloud/saas/financials/20b/farfa/op-expensereports-expensereportid-x-operations-2.html