Hi @Justin HJ (Hyeong Ju Lee) [Risk Management] ,
Slack is a third-party application. Currently, Q&A forum does not support Slack. Based on my research, you could connect some Office 365 tools like Outlook and SharePoint to Slack by Power Automate. Here are some Power Automate templates for reference: Power Automate Slack
And here is a documentation from Microsoft about Slack: Microsoft Documentation Slack
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