curl --request DELETE \
  --url https://api-{dc}.moengage.com/v1/coupon-list/{coupon_list_id}/files/{coupon_file_id} \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'MOE-APPKEY: <moe-appkey>'

{
  "error": {
    "code": "invalid-request",
    "message": "The requested JSON is incorrect. Please verify and try again."
  }
}

{
  "error": {
    "code": "request-unauthenticated",
    "message": "Your request is unauthorized. Please verify your credentials and try again."
  }
}

{
  "error": {
    "code": "request-forbidden",
    "message": "Your account does not have access to the Coupon Management features. Contact the MoEngage team for further assistance."
  }
}

{
  "error": {
    "code": "unexpected-error",
    "message": "Something went wrong with your request. Please contact the MoEngage team for further assistance."
  }
}