Apply category notification preferences to existing users

I have created a new category. Then I have set its notifications to Muted by default via “default categories muted” at /admin/site_settings/category/user_preferences.

These settings will be inherited by new users, but… I see that existing users will receive notifications until they manually change their preferences. I fear many of these users will not even know they can do that, they will only feel overwhelmed about the new incoming traffic and they will unsubscribe from notifications altogether.

Is there a way to change this setting for all existing users at once. I see that I could do it one by one manually…


Bulk suspend users based on criteria is a hint. There may be other topics with the details for watching a category.

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There is a guide to read for that:


Thank you! FIXED (and 20 chars)

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