WhatsApp announced a significant change this week. Starting later this year, users will be able to message each other using optional, customizable usernames, a major departure from the phone number-based system the platform has relied on to date. As of writing, some users can reserve usernames, while others can’t. Based on what WhatsApp has said, everyone on the platform should be able to snag a username beginning this week.If you care about getting a unique username that doesn’t read like a string of random letters and numbers, you’ll want to get a jump on this process as soon as you’re able. Thankfully, it’s a simple process that only takes a minute or two. Here’s how WhatsApp usernames will work, and how to reserve your own. How do WhatsApp usernames work?