Slack to Notion テンプレート (日本語の説明はこちらです)
At first, please duplicate this template and write memos for several parameters to code blocks. I think there are still some bugs, so I will keep version control on GibHub.
https://github.com/hkob/slack_to_notion
Version history
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Visit my-integrations page, and create an integration key.
Notion - The all-in-one workspace for your notes, tasks, wikis, and databases.
In this description, I use input_tasks integration key.

Copy internal integration token and write it.

database_idOpen the Slack Stock DB database, and invite the above integration.

Obtain the page URL. The red text in the URL is the database id.
<https://www.notion.so/hkob/771391e755c245b2a31290f40f187ab9?v=19b6c58912764cc2900e8af0afe204e3>
Copy the database_id from the URL and write it.