Keep in mind that everything you're describing is the result of bad programming practices from before Globalization took off. If your name is Doe and Jon is op

Keep in mind that everything you're describing is the result of bad programming practices from before Globalization took off. If your name is Doe and Jon is optional change your name to Doe Smith and expect to be called that. if Jon Doe is your full name you should probably use Jon-Doe and ask if the institution you're dealing with has a suggestion/complaint box. Jondoe is a safe bet, but it also implies that Jondoe is a single name. Having various names MIGHT bite you, but probably won't. No one is likely to start an issue over it, but if there's another issue they're likely to use it against you.