> For the complete documentation index, see [llms.txt](https://tailieu.kikilogin.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tailieu.kikilogin.com/tien-ich-mo-rong/4.-tikcrm-frozen-checker.md).

# 4. TikCRM Frozen Checker

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