> For the complete documentation index, see [llms.txt](https://help.windmillsoft.kr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.windmillsoft.kr/simplymessage/troubleshooting/undefined-1.md).

# 문자 메시지 전송이 실패해요