Hi everyone, I want to enforce a rule in my Discourse forum where, for a specific category only, users must attach a particular tag when creating a topic. Users can attach any number of tags, but one specific tag must be present; otherwise, the topic creation should be blocked with an error message. I’m using the Blackout theme (or custom theme), and I want to add this validation client-side with JavaScript. Is there a way to add such a condition in the theme’s JavaScript (e.g., in the Blackout theme’s custom code) to: Check if the topic being created belongs to the specific category, Check if the required tag is attached, Show an error and prevent topic creation if the required tag is missing? If yes, could someone please share an example or the best approach to do this? Thanks in advance!

I’m fairly sure you can do this with built-in tools. In the category settings, look at: [CleanShot 2025-08-25 at 13.21.39@2x] So you just need to make a tag-group, add the tag you want, and then select that group in the category you want it to be required.

Hi, I followed the steps. I created a Tag Group and added a single tag to it. In the category settings, under Tags > Required tag group, I selected this tag group. My expectation is: when creating a new topic in this category, at least one tag from the required tag group should be mandatory. However, the system is allowing topics to be created without any tag from the required tag group, which defeats the purpose of this setting. I’ve attached screenshots showing: The tag group configuration The category settings A newly created topic that bypassed the requirement [image] [image] [image] Can you please help investigate if this is a bug, or if I might be missing something?

I think you’re right and you have uncovered a bug. I’m pinging the relevant team!

@S.AAKASH_MUTHIAH Okay so it turns out this restriction does not apply to admins… So at least it’s working as expected for normal users, I’ve tested it and can confirm. We’re discussing internally how we will improve this further, either by applying it globally or making this behaviour at least clear.

I personally would rather it not apply globally, the point of Admins is supposed to be you can override anything and this would make it impossible to override this specific thing. Unless you add a way to get around that, which just seems like a lot more work than leaving it as is. I mean Admins can post in closed topics just like they’re normal topics, and that’s obviously intended. It’s completely normal behavior for them not to be constrained by anything they put on the site IMO

@S.AAKASH_MUTHIAH were you able to resolve your issue? I think @chapoi’s advice works for your use case. You just have to remember that you as admin are not impacted by it, as you are not impacted by other restrictions for non-admins.

Como impor uma tag obrigatória para criação de tópicos em uma categoria específica via JS do tema (tema Blackout)?

Suporte ao Produto

chapoi 26 Agosto , 2025 08:53 4

Acho que você está certo e descobriu um bug. Estou contatando a equipe relevante!

Tópico		Respostas	Vistas
Required tags should only be required based on type of user UX tags , tag-groups	11	522	27 Dezembro , 2025
Remove optional tag UX	9	1353	11 Outubro , 2020
Topic can be created without tags despite category requiring tags Bug tags , tag-groups	4	276	24 Setembro , 2025
The option to enforce tagging Feature	16	6331	11 Abril , 2018
Category with restricted tags now required for admins? Product Support	8	900	29 Maio , 2020

Como impor uma tag obrigatória para criação de tópicos em uma categoria específica via JS do tema (tema Blackout)?

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