Windows PowerShell ISE Invoke-RestMethod 404 error

Hi,

Anyone see what is wrong with the below in Windows PowerShell ISE?

It works with -Method Post but not Put. Testing overwriting the data every 12 seconds.

while (1 -eq 1 ){
$command=

$data = Invoke-RestMethod -Method Get "https://api.xxxxxxxxxx"
$endpoint = "https://api.powerbi.com/beta/xxxxxxxxxxxxxxx/datasets/xxxxxxxxxxx/rows?experience=power-bi&key=xxxxxxxxxxxxxxxxx"
$payload = @{
"ticker" =$data."ticker"
"v" =$data."results"."v"
"vw" =$data."results"."vw"
"o" =$data."results"."o"
"c" =$data."results"."c"
"h" =$data."results"."h"
"l" =$data."results"."l"
"t" =$data."results"."t"
"n" =$data."results"."n"
}
Invoke-RestMethod -Method Put -Uri "$endpoint" -Body (ConvertTo-Json @($payload))

$command
start-sleep -seconds 12
}

Returns:

Invoke-RestMethod : The remote server returned an error: (404) Not Found.
At C:\Users\xxxxx\OneDrive - xxxxx\Desktop\API stock test.ps1:17 char:1
+ Invoke-RestMethod -Method Put -Uri "$endpoint" -Body (ConvertTo-Json ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-RestMethod], WebException
+ FullyQualifiedErrorId : WebCmdletWebResponseException,Microsoft.PowerShell.Commands.InvokeRestMethodCommand