createReceiptShipment got 403

[lancerdia]

I am trying to test the endpoint 'createReceiptShipment' and I'm pretty sure my headers, shop_id and receipt_id are fine because I successfully got code 200 resp from 'getShopReceipt' with them, and the API KEY has been authorized with transaction_r, transaction_w, shops_r, shops_w etc. But I keep getting 403 {"error": "Unauthorized"} from 'createReceiptShipment' with the following code structure and Postman too. Can anyone have knowledge with this please give me a hint?

request_data = {
    "tracking_code": "921449********18741207",
    "carrier_name": "U**S",
    "send_bcc": "false",
    "note_to_buyer": ""
}
encoded_data = urlencode(request_data)
etsy_auth = OAuth2Session(apikey, token={"access_token": access_token})
try:
    response = [etsy_auth.post](http://etsy_auth.post/)(
        request_url,
        headers=headers,
        data=encoded_data
    )

[ihartaras]

I’m experiencing the same issue. All GET requests work fine, but some POST requests have started returning authorization errors. I haven’t made any changes to the code. It seems like the API has been updated without any notification, and the documentation hasn’t been updated accordingly. That’s quite inconvenient.