You need to follow the procedures to unlink on both Unipos and Slack platforms.
*Only administrators can unlink Slack
1. Unsyncing from the Unipos platform
・Pull up the screen for linking external services and click "Unlink" under Slack.
・Click "Unlink" again in the pop-up screen.
This completes the Unsync process on the Unipos platform.
2. Then, unsync on the Slack platform.
・From the workspace name in the top left corner of the Slack screen, click "Administration" > "Manage apps".
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・Click Unipos in the "Installed Apps" section.
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・Click "Remove App" at the bottom of the page.
This completes the unlinking process on the Slack platform.
Unlinking is now complete.