An electronic visa for Egypt, or any visa for that matter, can guarantee admission to Egypt. Please note that the e-Visa is a document that grants a visitor permission to travel to and within Egypt.
The e-Visa for Egypt is currently available for citizens of certain eligible countries and who are traveling for tourism purposes. However, the e-visa in no way guarantees entry to the country. Final authorization to Egypt will be granted at the discretion of the Egyptian border authorities.