# 'watching first post' on a tag doesn't work on existing topic?

**URL:** <https://meta.discourse.org/t/watching-first-post-on-a-tag-doesnt-work-on-existing-topic/328974>\
**Category:** Support\
**Created:** [October 2, 2024, 7:56am UTC](https://meta.discourse.org/t/watching-first-post-on-a-tag-doesnt-work-on-existing-topic/328974 "2024-10-02T07:56:45Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![ToddZ](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/toddz/32/328350_2.png) [@ToddZ](https://meta.discourse.org/u/ToddZ)\
**Post date:** [October 3, 2024, 3:27am UTC](https://meta.discourse.org/t/watching-first-post-on-a-tag-doesnt-work-on-existing-topic/328974/10 "2024-10-03T03:27:18Z")

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Just for curiosity/comparison sake, I’m testing the _‘watching first post **in category** ’_ behavior, and it’s _not_ notifying upon recategorization.

My `email time window mins` is 10, & I’m leaving 15min between steps.  
I’ve repeated this several times now…

- Create new topic in un-watched sandbox category. Wait 15 min.
- Move the topic into a category a user is Watching: triggers immediate notifications, sends email 10 min later.  
  
- Create another new topic in un-watched sandbox category. Wait 15 min.
- Move the topic into a category where a user is ‘Watching First Post’: does nothing, ever.

(Self-hosted std. install, 3.4.0.beta2-dev (0c019b2e45), tests-passed.)

Maybe it’s something about my process, but I can’t imagine what. Is it possible the functionality that got sorted in 2018 has become unsorted?

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_[View the full topic](https://meta.discourse.org/t/watching-first-post-on-a-tag-doesnt-work-on-existing-topic/328974)._