USERNAME_OCCUPIED
USERNAME_OCCUPIED
Section titled “USERNAME_OCCUPIED”The provided username is already occupied.
Error details
Section titled “Error details”- code: 400
- parameterized: no
- mapped methods:
account.checkUsername,account.updateUsername,bots.checkUsername,bots.createBot,channels.checkUsername,channels.updateUsername,users.getFullUser
Python error class
Section titled “Python error class”from miniproto.errors import UsernameOccupiedPublic access: miniproto.errors.UsernameOccupied.
Provenance
Section titled “Provenance”- structural source:
tdlib - RPC error source: https://core.telegram.org/api/errors
- prose merge precedence: TDLib → Telegram Desktop → Core JSON
- source note: Canonical structure is the pinned TDLib telegram_api.tl; Layer 229 comes only from the matching Telegram Desktop end-of-file marker; core.telegram.org inputs enrich documentation and RPC error metadata without overriding structure.
Source-diff notes
Section titled “Source-diff notes”- tdlib_vs_core: changed_count=78; core_only_count=18; overlap_count=2285; tdlib_only_count=195
- tdlib_vs_tdesktop: changed_count=0; overlap_count=2470; tdesktop_only=null; tdlib_only=accessPointRule, help.configSimple, inputPeerPhotoFileLocationLegacy, inputStickerSetThumbLegacy, invokeWithApnsSecretPrefix, invokeWithBusinessConnectionPrefix, invokeWithGooglePlayIntegrityPrefix, invokeWithReCaptchaPrefix, ipPort, ipPortSecret