Fill in a few standard info details online and get the approval letter, arrive at a viet airport and they will give you your visa stamp etc at immigration control. Sometimes the Evisa refuses passport numbers etc due to software hiccups.
Be mindful of costs too especially using agents or their sites!
a VOA should cost around $30 for a single entry visa.
So it’s Still ok to ask where the best place to exchange money in Vietnam is? as I’m planning a trip to Malaysia in 2027 and might go to DaNang for 1 night! 🤣🤦🏼♂️🤣