As soon as you are granted an electronic travel authorization (eTA), you can travel to Canada. Although eTA authorization is mandatory, it does not guarantee admission to Canada Upon arrival to Canada you will be subject to a routine inspection at the port of entry by an immigration officer who will determine your admission to Canada according to applicable law.
Refusal of an eTA application does not prevent the applicant to request a visa from a Canada visa processing office.
All information provided by you or by a designated third party must be true and accurate. An approved electronic travel authorization may be cancelled at any time for any reason, especially if new personal circumstances or information affect the application. Providing false, misleading or fraudulent information knowingly and intentionally when submitting a travel request may lead to action taken against you including but not limited to charges of perjury.