curl --request GET \
  --url https://api.sandbox.co.in/gst/compliance/tax-payer/gstrs/gstr-2a/ecoma/{year}/{month} \
  --header 'authorization: <authorization>' \
  --header 'x-api-key: <x-api-key>' \
  --header 'x-api-version: <x-api-version>'

{
  "code": 200,
  "timestamp": 1769775699280,
  "data": {
    "status_cd": "0",
    "error": {
      "message": "No document found for the provided Inputs",
      "error_cd": "RET13509"
    }
  },
  "transaction_id": "800bae5a-0c3b-4dda-b235-9aa20c6f7f31"
}