An electronic visa for Kuwait, or any visa for that matter, can guarantee admission to Kuwait. Please note that the e-Visa is a document that grants a visitor permission to travel to and within Kuwait.
The e-Visa for Kuwait 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 Kuwait will be granted at the discretion of the Kuwaiti border authorities.