Missing your enumeration window isn't catastrophic!
If you're absent, enumerators will revisit during your state's designated period. Self-enumeration provides flexibility: fill your details online during your 15-day window at your convenience. If you miss both self-enumeration and the enumerator's visit, don't panic.
Authorities conduct follow-up rounds to ensure complete enumeration. You're not excluded permanently, just coordinate with your local census office for a reschedule. The system is built with flexibility because they understand people have jobs, travel, and unpredictable schedules.