Useful Guideline in Submitting an application for a Canada ETA
https://r5scxlw568.doodlekit.com/blog/entry/5282454/useful-guide-in-applying-for-a-canada-eta
The Canada eta is needed by individuals who will be visiting Canada soon. When you are taking a flight to the country, you will have to show the ETA. Also recognized as Electronic Travel Authorization, this requirement