Telegram Topics: Split a Group That Got Too Big

A group works right up until the moment it doesn't. Two hundred people talking about one thing is a community. Two hundred people talking about six things in the same window is a wall of text that new members scroll for four seconds and abandon. The usual reaction is to make rules, appoint more admins, and pin a message asking everyone to stay on subject, and none of that survives a busy Saturday.

Topics are Telegram's structural answer to that. Instead of one stream, the group holds several, each with its own history and its own notification setting, and members pick which ones they care about. Telegram describes them in its own FAQ as a way to split discussions like classic forums, which is the clearest description available, because that is exactly the shape.

This article covers what turning topics on actually does, who gets to create them, what breaks that nobody warns you about, and how the feature compares with Communities, which arrived on 14 July 2026 and changed the answer to the question of how you organise a large group. Everything about the platform here comes from Telegram's own blog, FAQ and Bot API documentation, read on 8 August 2026 rather than remembered.

What Telegram Topics Actually Are

Topics turn a supergroup into a forum. The group keeps one membership, one set of admins and one invite link, but the message area splits into named sections, and each section behaves like its own chat. Telegram's launch post from 5 November 2022 puts it plainly, saying topics function as individual chats within the group, with their own shared media and notification settings.

That last part is the piece most people underestimate. A topic is not a filter or a tag applied to messages after the fact. It's a container. Media shared inside a topic lives in that topic's media list, not in a single group-wide pile. Someone who mutes a topic stops hearing from it without leaving the group, which is the difference between a member who goes quiet and a member who goes away.

What Still Works Inside a Topic

Everything you already use. The launch post lists polls, pinned messages and bots as available inside topics, and in practice the whole feature set carries over, because a topic is a message thread rather than a restricted mode. You can pin a different message in each topic, which is more useful than it sounds. A group with one pinned message has one announcement. A group with eight topics has eight places to put the rule that belongs there.

What a Topic Is Not

A topic is not a separate group. Members do not join a topic, they join the group and then see the topics available to them. Bans, restrictions and admin rights apply at group level. If you need genuinely separate membership, with people in one room and not the other, topics are the wrong tool and the Communities section below is where to look.

Turning Topics On, and What Changes Immediately

Admins enable topics from the group settings, and control who is allowed to create and manage them under permissions. Telegram's own wording on the launch post is that admins can do both of those things, which means the decision and the delegation are separate switches. You can turn the forum on and still keep topic creation to yourself.

The moment you flip it, three things change for every member at once. The chat list entry stops opening onto messages and starts opening onto a list of topics. Existing history moves into the General topic rather than staying at the root. And the notification badge splits, so a member who had one unread count now has one per topic.

The Part People Regret

Turning topics on is easy and turning them off is disruptive, so the mistake to avoid is treating it as a cosmetic setting you can try for a week. A group that has been running as one stream has habits built around one stream. Members know where to ask, admins know where to look, and your pinned message has been read by everyone who is going to read it. Rearranging that has a cost, and the cost lands on the people who were already comfortable.

The version of this that goes badly is a group under a thousand members with three topics that all see traffic, because now every conversation happens in a room that looks half empty. The version that goes well is a group where two subjects were already fighting for the same screen and one of them was losing.

Who Can Create and Manage Topics

Permission for topics is a specific admin right, not a side effect of being an admin. Telegram's Bot API documents it as can_manage_topics and describes it as the right to create, rename, close and reopen forum topics, for supergroups only. That single line answers several questions at once.

Creating and closing are the same right, so anyone you trust to open a topic can also close one. Renaming is included, which matters more than it looks, because a topic name is the only signpost a new member gets. And the right exists for supergroups only, which is the API's way of saying what the interface implies, that this is a group feature and channels are a different object.

Letting Members Create Topics

You can extend creation to ordinary members through the permissions screen. Whether you should depends on one thing, which is whether you have someone reading the group every day. Open creation in an active group produces duplicate topics within a week, two of them named almost the same, and the fix is not technical. Somebody has to notice and merge the conversation by hand, because a topic can be closed but its messages don't move.

If nobody is going to do that, keep creation with the admin team and let members ask. The request is a one-line message and the answer takes ten seconds. If you're already running moderation tooling, both Rose and ComBot handle the surrounding work of keeping a busy room civil, and they operate inside topics the same way they operate in a flat group.

The General Topic, the One Nobody Plans For

When topics go on, the existing conversation does not disappear. It becomes the General topic, which sits at the top and holds everything that was there before. Most groups then leave it alone, and it quietly becomes the place where every message that doesn't obviously belong somewhere else lands, which is to say most messages.

Telegram's Bot API gives it three dedicated methods, editGeneralForumTopic, hideGeneralForumTopic and unhideGeneralForumTopic, all of which require the same manage-topics right. The existence of a hide method is the interesting one. It means Telegram expects some groups to want General gone from view entirely, and gives a way to do it without deleting the history inside.

Three Ways to Handle General

Rename it to something that describes a job. General is a label that invites anything. Announcements, Start Here or Off Topic each tell a member whether their message belongs, and the rename costs nothing.

Hide it if your structure is complete and you want every message filed. This is the strict version and it works for support-shaped groups where every incoming message really does belong to a category.

Leave it visible and treat it as the catch basin if your group is social rather than operational. A room where people say good morning needs somewhere to say good morning.

Topic Links and Why People Search for Them

A topic has its own address. That's the substance behind the search for a topic group link, which is one of the most common ways people arrive at this subject. The link points at a message thread inside the group, so opening it drops the reader into the right section rather than the front door.

In the Bot API the same idea appears as message_thread_id, documented as the identifier for the target message thread of a forum topic. Anything that sends into a specific topic carries that field. It's worth knowing the name even if you never write code, because it explains why a tool either supports topics properly or doesn't support them at all. There's no halfway. Either the sender sets the thread or the message goes to General.

What to Do With a Topic Link

Put the link where the question gets asked. A support topic link belongs in the footer of your site and in the first line of your onboarding message, not buried in a pinned post inside the group the person hasn't joined yet. The whole value of the address is that it skips a step for someone who already knows what they want.

The same applies in reverse when you're bringing people in. If you're growing the room deliberately, sending everyone to the group root and hoping they find the right section wastes the introduction. Our Member Adder work exists on the intake side of that problem, and the read on it is the same as here, which is that where somebody lands decides whether they stay.

Topics in a Channel: the Short Answer Is No

People search for topics in a channel constantly and the feature does not exist there. The API says it in the driest possible way, marking the topic rights as applying to supergroups only, and the reason is structural rather than a gap waiting to be filled. A channel is a broadcast surface with an audience that reads. A topic is a place where an audience talks. They solve different problems.

What a channel can have is a discussion group attached to it, and that group can have topics. So the shape people actually want is usually reachable, it just has two objects instead of one. Posts go out on the channel, comments land in the linked group, and inside that group you can split the conversation into sections.

When the Two-Object Setup Is Right

It fits when your publishing and your conversation have different rhythms, which is most of the time for anyone running a channel seriously. You post four times a week and people talk every day. Keeping those in one object forces you to choose whose experience gets worse.

If you're at the stage of working out what to publish at all, the material in content ideas and posting times is the layer underneath this one, because structure only helps a channel that has something to structure. And if you're operating more than one channel, Channel Clone is where the duplication work goes.

What Topics Fix, and What They Quietly Break

The fixes are the reason to do it and they're real. Parallel conversations stop colliding. Members self-select into the parts they want and mute the rest. A newcomer sees a menu instead of a wall, which is the single biggest change to how a large room reads. Telegram's own framing is that this is aimed at large groups specifically, and that framing is worth taking literally.

The breakages are less discussed, so here they are plainly.

Finding Things Gets Harder Before It Gets Easier

Search inside a forum group behaves differently from search in a flat one, because results now belong to sections. If you're used to scrolling back through one history to find that thing someone said, that history is now several histories. This settles once people learn the structure, but the first fortnight is genuinely worse than what you had.

Messages Don't Move Between Topics

There's no re-filing. A conversation that started in the wrong topic stays there unless someone forwards it, and forwarding breaks the thread of replies. The practical consequence is that topic names have to be obvious on the first read, because the cost of a member guessing wrong is permanent.

Notification Behaviour Changes for Everyone

Per-topic notification settings are a feature, but they arrive as a default nobody chose. Some members will be notified by more things than before and some by fewer, and neither group will connect the change to your decision. A short message explaining that topics can be muted individually prevents most of the complaints.

Tooling Either Supports Topics or Ignores Them

Any bot or script that posts into the group needs to target the thread, and one that predates topics will send everything to General. That's not a subtle failure, it's a bot that appears to work while filling the wrong room. If you run automation in the group, test it in the first hour rather than finding out from a member. Our own Bot Manager exists for the operational side of running bots you didn't write, and the general shape of that work is covered in auto reply bots and broadcast bots.

Communities, and Why This Question Changed in July 2026

On 14 July 2026 Telegram added Communities, which link several channels, groups or bots together. It's the most significant thing to happen to this decision since topics launched, and anyone comparing options today needs it in the picture.

From Telegram's announcement, a community lets members see the other chats in it and join them instantly, without an invite link. Chats inside can be visible to all members or hidden from everyone except community admins and the members of that chat. The community occupies a single item in the chat list that expands when opened, and you can toggle whether it shows as one entry or as separate chats. Adding chats is collaborative by default and can be restricted, in which case new chats appear as suggestions instead.

The Real Difference

Topics divide one room. Communities group several rooms. That sounds like a small distinction and it decides almost everything downstream.

With topics you have one membership list, one set of permissions and one moderation surface. Everything that's true of a member is true everywhere. With a community you have several chats, each with its own membership, and the ability to hide some of them from people who aren't in them. The hidden-chat option is the capability topics simply do not have, and if you've ever wanted a private section inside a public room, that's the feature you were asking for.

The Cost of Several Rooms

Every chat in a community is a chat you have to moderate, populate and keep alive. Ten topics in one group of five thousand people are ten busy sections. Ten groups in a community are ten rooms that each need their own critical mass, and thin rooms read as abandoned even when the community as a whole is healthy.

Choosing Between Topics, a Community, and a Channel With Comments

Three structures, three different jobs. The choice gets easier if you answer one question first, which is whether the people in your room need to be separated from each other or merely from each other's noise.

The Combination Most Operators End Up With

A channel for the announcements, a discussion group linked to it, topics inside that group for the recurring subjects, and, if there's a paid or private tier, a community that holds the public room and the private one together. Nothing about that requires all four on day one, and building them in that order means each one is added because the previous one hurt.

Scaling the audience that fills these rooms is a separate problem from arranging them, and it's the one covered in scaling a channel. Structure makes a busy room readable. It does not make a quiet room busy.

Moving an Existing Group Onto Topics Without Losing the Room

The technical part takes a minute. The part that goes wrong is social, so treat it as a change to how people work rather than a settings update.

Start With Fewer Topics Than You Want

Three or four, each named after something people already ask about. You can read what the group needs from the last month of messages, because the recurring questions are the topics. Adding a fifth later is trivial. Deleting one that never filled up is an admission in public.

Name Them the Way Members Would

Not the way you would. A topic called Infrastructure is a category from your side of the table. A topic called Something Is Broken is where people will actually post. The test is whether a member who has been in the group for one day can pick the right one without thinking.

Write the Pinned Message Before You Flip the Switch

One message, in General, explaining what changed, where each kind of conversation goes now, and the fact that topics can be muted separately. Post it first, then enable. A group that finds out by opening the app is a group that asks the same question forty times.

Watch the First Week and Merge Nothing

Resist the urge to reorganise while people are still learning. If a topic is empty after a week, it was the wrong topic and closing it is fine. If two are competing, rename one rather than deleting it, because deleting takes the messages with it.

Bots, Automation and Topics

Anything automated that touches the group needs to know topics exist. The Bot API exposes this through a handful of methods and one flag, and the flag is the one to check first. Telegram documents is_forum as true when the supergroup has topics enabled, so a well written tool can detect the situation instead of guessing.

Creating topics programmatically is createForumTopic, which the documentation says requires the bot to be an administrator with the manage-topics right. Closing is closeForumTopic. Topic icons can carry a custom emoji through icon_custom_emoji_id, which is the mechanism behind the coloured markers you see in well organised forums.

The Failure Mode Worth Testing For

A bot without the manage-topics right fails on creation but still sends messages, which produces the confusing state where automation appears healthy and nothing is filed correctly. Grant the right explicitly at setup rather than assuming administrator covers it, because the API treats them as separate.

Where This Meets the Rest of Your Stack

If conversations from the group turn into leads, the thread they came from is worth keeping with the record, and that's a case for treating Telegram as a pipeline rather than an inbox. The reasoning behind that is in using Telegram as a CRM, and the tooling side is Account Manager, which puts several accounts and their conversations in one place. For outbound work that starts elsewhere and lands in the group, Mass DMs is the other end of the same route, with the limits worth respecting set out in add member limits and spam restrictions.

A Checklist Before You Turn Topics On

Six questions. If more than two answers are uncomfortable, wait.

Is the Problem Volume or Direction

Topics fix a room with too many subjects. They do nothing for a room with too few messages, and they make a quiet room look emptier by dividing what little traffic there is.

Do You Know Your Four Topics Already

If you have to invent them, the group hasn't told you what it needs yet. Read the last month first.

Is There Somebody Watching Daily

Forums drift. Names get stale, duplicates appear, and the wrong topic collects everything. This costs a few minutes a day and it is not optional.

Does Your Automation Set the Thread

Check every bot and script that posts. One that predates the change will fill General while looking fine.

Do You Need Separate Membership

If the honest answer is yes, topics are the wrong shape and a community is the right one. Hidden chats exist there and do not exist here.

Have You Written the Announcement

Before, not after. The message costs five minutes and saves the week.

Topic Icons, Order and the Small Things Members Notice

A forum group is read the way a menu is read, which means the list itself is the interface and the details in it do more work than the messages underneath. Telegram gives you three levers here and most groups use none of them.

Icons Carry the Category Faster Than Words

Topics can take a custom emoji as their marker, exposed in the Bot API as icon_custom_emoji_id. This matters because a member scanning eight names reads shapes before words, and a consistent icon set turns a list into something navigable at a glance. Pick markers that differ from each other rather than markers that look impressive together. Two similar icons are worse than none, because they invite the wrong click and a message posted in the wrong topic cannot be moved.

Order Is a Statement About Priority

The topic list has a top and members treat the top as the default. Whatever sits there receives the messages of people who did not really choose. Put the section you most want to be busy in that position, and put the sections that only matter to a subset lower down. If your support topic is fourth in the list, expect support questions in whatever is first.

Closing a Topic Is Not the Same as Deleting It

The Bot API separates these, giving closeForumTopic as its own method alongside the right to reopen. A closed topic keeps its history and stops accepting new messages, which is the correct end state for a subject that ran its course, an event that finished, or a launch that shipped. Deleting throws the record away. Closing keeps it searchable and signals that the conversation ended on purpose rather than through neglect, and a forum with a few deliberately closed sections reads as maintained.

Empty Topics Cost More Than Missing Ones

A member who opens a section and finds four messages from three weeks ago concludes that the group is quiet, and that conclusion spreads to the rest of the room. It is better to run three sections that are all busy than eight that are mostly not. This is the single most common way a well intentioned forum makes a healthy group look dead, and the fix is to close sections rather than hoping they fill.

Knowing Whether the Change Worked

Turning topics on is a structural change with no built in scorecard, so the temptation is to judge it by whether the group feels tidier. That is not a measurement, and a month later nobody can say whether the decision helped. Three things are countable without any tooling beyond the app itself.

Where the Messages Actually Went

Two weeks after the switch, look at which sections carry traffic and which do not. The distribution you get is rarely the one you designed, and the gap is information rather than failure. A topic you expected to be secondary carrying most of the volume means the group's real subject is not the one you named it after.

Whether the Same Question Still Repeats

The clearest argument for a forum is that recurring questions get a permanent home, so the test is whether they stop being asked in the wrong place. If the same thing is still landing in General a month later, the topic name is not obvious enough or the pinned message never got read, and both are cheap to fix.

Whether Anyone Left

Member count before and after is the blunt version, and it is worth watching for a fortnight because notification changes are the kind of thing that pushes a marginal member out quietly. If numbers dip and settle, that was the reorganisation. If they keep sliding, something else is wrong and the structure is not the cause.

For channel side numbers rather than group ones, the reporting that exists is covered in channel analytics, and the broader question of what a busy room is worth is in monetization. Both are the layer after this one, because structure decides whether the traffic is readable and those decide whether it pays for itself.

What Topics Do Not Solve

It is worth being clear about the ceiling, because a structural change invites the hope that it fixes things structure cannot reach.

They Do Not Make People Post

A room is quiet for reasons that live outside its layout, usually because nobody has a reason to speak or because the last three questions went unanswered. Dividing that silence into sections produces several silences. If the honest problem is participation, the work is answering faster and giving people something to react to, and no arrangement of the furniture substitutes for it.

They Do Not Replace Moderation

Sections tell a well behaved member where to put a message. They do nothing to somebody who is not trying to cooperate, and a forum with eight topics gives a determined spammer eight places to post instead of one. Rules, admins and whatever automated screening you run all matter exactly as much as they did before.

They Do Not Fix Onboarding

A menu is only useful to somebody who already knows roughly what they want. The member who joined thirty seconds ago and does not yet know what the group is for is helped by a first message, not by a list. Topics make the second minute better and leave the first minute exactly as it was.

Common Mistakes That Are Easy to Avoid

Most forum groups that fail do so for one of five reasons, and all five are decisions rather than accidents.

Building the Structure You Wish You Had

Topics are a description of the conversation that exists, not an aspiration for the one you want. A group that talks about two things gets two topics even if the plan mentions six. The other four can be created on the day the traffic appears, which takes ten seconds.

Using Internal Language

Names drawn from how your team thinks about the work will be invisible to everyone else. A member does not know whether their problem is an integration question or a configuration question, and forcing that judgement at the moment of asking is how General fills up.

Leaving Automation Untested

Worth repeating because it is the failure that hides. A bot that predates the switch keeps working and keeps posting to the wrong place, and the first person to notice is usually a member rather than an admin. Automation that runs on a schedule should be checked the same day, and the pattern for running scheduled work at all is set out in channel automation.

Turning It On During Your Busiest Week

The first days after the change are the worst days for finding anything, so a launch, a sale or an event is the wrong moment. Pick a quiet stretch where a confused member costs a message rather than an order.

Treating It as Finished

A forum needs the same attention as any other part of an operation. Names age, sections die, new subjects appear, and none of that resolves itself. Fifteen minutes a month keeps the list honest, and the groups where topics obviously worked are, almost without exception, the ones where somebody is doing that quarter of an hour. The wider habits that keep a room alive are in engagement, and finding rooms worth joining in the first place is in finding groups.

Frequently Asked Questions

Can any Telegram group use topics, or is there a size requirement

Telegram's launch post states that groups can enable topics regardless of their size, so there's no threshold to clear. The company does say the feature is intended specifically for large groups, which is guidance about fit rather than a restriction. A group of forty people can switch it on and will usually regret it, because dividing a small amount of traffic makes every section look dead.

Can a Telegram channel have topics

No. The Bot API marks the topic permissions as applying to supergroups only, and topics never appear in channels. The arrangement that gets you the same result is a channel with a linked discussion group, and topics enabled inside that group. Posts stay on the channel, conversation happens in the group, and the group can be divided into sections.

What happens to old messages when topics are enabled

They move into the General topic rather than being lost. General holds everything that existed before the change and continues to exist afterwards. Telegram provides methods to rename it and to hide it entirely, so you can either give it a job or take it out of view once the rest of your structure is in place.

Who is allowed to create topics in a group

Admins with the manage-topics right, which the Bot API describes as permission to create, rename, close and reopen topics. The right can also be extended to ordinary members through the group's permissions screen. Open creation works when somebody reads the group daily, because duplicates appear quickly and messages cannot be moved between topics after the fact.

Should I use topics or the new Communities feature

It depends on whether your people need to be separated from each other or only from each other's noise. Topics divide one room with one membership list, so everyone can see every section. Communities, added on 14 July 2026, link several chats together and allow some of them to be hidden from members who are not in them. Choose topics for one audience with several subjects and a community for several audiences.