A bot that writes comments on your posts automatically — Facebook and Instagram, and when it does more harm than good
On this page 8
The short answer
The "bot that writes comments" worth running is an auto-comment campaign: your page posts a comment on its own posts, once at a time you set or periodically on a schedule, on Facebook and Instagram.
What is sold under the same name — comments on other people's pages or from fake accounts — violates Meta's policies, and the usual result is a restricted page. This page explains the first kind, and says when even that one does harm.
The short answer
Yes: an auto-comment campaign posts a comment from your page on your own posts, once or periodically on a schedule, on Facebook and Instagram. Commenting on other people's pages or from fake accounts violates Meta's policies and usually gets the page restricted.
Also asked as: «بوت يكتب كومنتات على البوستات» · «بوت يعلق تلقائي على منشورات الصفحة» · «برنامج تعليقات تلقائية فيسبوك»
1. What it actually does
You pick a post from your Facebook page or Instagram account, write a comment text or several variants of it, and set when it is published. At that time the bot places the comment as the page under the post, exactly as if your employee had typed it from a phone. Nothing more than that: no other accounts, no likes, no pages other than yours.
The reason this deserves a tool rather than a person is the long-lived post. A sponsored ad that runs for a month gets comments every day, the question you answered on day one has sunk by day three, and the order link you put in the first comment is on the fourth page of comments. A comment campaign puts it back on top on a schedule that does not depend on anyone remembering.
2. What it is not — and why people get restricted for it
Much of what ranks for this phrase is tools that promise the bot will "write comments" on competitors' posts, in groups, or from dozens of accounts to raise engagement. All of it plainly violates Meta's policies, and the systems catch it easily because the pattern is obvious: the same text from different accounts within minutes. The outcome is a restricted page or deleted accounts, and sometimes a ban on the linked ad account.
Buying comments or likes falls in the same box. Our rule is plain: the bot writes on your own posts only, and we do not build anything that runs without the page's official permissions. The WhatsApp equivalent is covered in the why numbers get banned guide: a tool that works outside the official route costs you the account itself.
3. The four uses worth it
We see them at the merchants who actually run campaigns, and they are four, no more:
- Keeping the offer visible under a long post
The price, the store link on Salla, Zid or Easy Orders, and how to order. Under a post that draws comments for days, a periodic comment from the page is the only way a new visitor finds the answer in the first thing they see.
- Answering the recurring question publicly
"Do you ship to Riyadh?", "how much?" and "is it cash on delivery?" get asked dozens of times under the same post. A standing comment from the page answers them once in front of everyone, so fewer people ask at all and auto-reply has less to answer.
- Sending commenters to direct messages
"Leave your number or message us and we will get in touch" as a comment from the page does two things: it tells commenters the route is messages, and it sets up the comment-to-DM tool that messages every commenter automatically. The number a customer writes in public must be hidden at once; that is in the next section.
- Keeping the ad post alive
A sponsored ad running for weeks needs the page's latest comment to be recent, not three weeks old. A periodic comment with several variants inside working hours gives the post the page's voice across the whole life of the ad without anyone sitting on the post.
4. How it pairs with auto-reply and comment-to-DM
Three tools on the same post, each with a direction: auto-comment starts from the page, comment auto-reply answers whoever commented publicly and can hide the comment if it holds a phone number, and comment-to-DM messages the commenter privately where the sale closes. Meta has a rule that governs the third: one private message per comment, explained in the Facebook auto-reply guide.
The order that works: a page comment saying "write your question and we will message you", then auto-reply answers every comment publicly and hides numbers, then comment-to-DM opens the conversation in Messenger or Instagram where the AI agent continues in the customer's dialect and reads the store's stock. All three are in the Facebook Plan at $10 a month (500 EGP), and with Instagram in FB & IG Pro at $25 (1,000 EGP). Full plans are here.
5. Setting a campaign up in four steps
- Choose the page and the post
From the comment automation section you choose the page or the connected Instagram account, then the post from the list or by pasting its id. On Instagram the post link is asked for. The comment is published as the page you chose, not as a person.
- Write the comment template with several variants
The template is saved under a name and holds one or more variants of the comment. Write three or four that say the same thing in different words, and put in them what the reader is really after: the price, the link, how to order. The template is reused in other campaigns.
- One-time or periodic
One-time: you set the date, hour and time zone, the comment is posted and the campaign ends. Periodic: you pick the frequency, the campaign's start and end dates, the daily hour window in which commenting is allowed (your working hours, so the page does not comment at 3 a.m.), and whether variants are picked randomly or in order from first to last.
- Start and watch the report
The campaign report shows, per campaign, how many comments were published, when the last one went out, and the error if one occurred, such as a deleted post or an expired permission. From the report you stop the campaign, edit its schedule, or renew it after its period ends.
6. When it does more harm than good
Even on your own posts, there are three cases where you should not run the campaign:
A post that gets comments for a single day does not need a periodic comment; the page's same comment five times under a post with ten comments looks mechanical and drives people off. Choose one-time, or do not run it at all and let auto-reply do the work.
"Leave your number and we will get in touch" followed by nobody getting in touch for three days is worse than no comment. Do not run this use before there is a unified inbox behind it where your team sees every message, on the web or from the app, or an AI agent that answers at once.
If you invite people to write their numbers, the numbers stay exposed to everyone who passes the post, competitors included. Turn on hiding of comments that contain a number in auto-reply at the moment you start the campaign, or else invite them to message rather than to write the number.
And if what you want is to publish posts rather than comments, that is a different tool: social auto-posting to Facebook and Instagram from RSS, YouTube or WordPress. Auto-comment works on the post after it is published, however it was published.
Frequently asked
Does the bot write comments on other people's pages?
No. An auto-comment campaign posts a comment from your page on your own posts only, on Facebook and Instagram. Tools that promise to comment on other people's pages or from fake accounts violate Meta's policies, and the usual outcome is the page or account itself being restricted.
How is it different from comment auto-reply?
Auto-reply answers whoever commented on your post, so it only runs when somebody writes. Auto-comment starts: it places a comment from the page under the post at a time you set or on a periodic schedule, whether anyone commented or not. The two run together on the same post.
Does auto-commenting raise the post's reach?
We do not know, and we do not promise it. Meta has not announced that a page commenting on its own post raises its reach, and we have not measured it on our platform. The practical purpose of the campaign is different: keeping the offer, the link or the answer visible under a long post that new comments keep flooding.
Which should I choose: one-time or periodic?
One-time when a single comment you can pin is enough, such as the price or the order link under an ad post. Periodic when the post draws comments for days and the page's first comment sinks; then set the campaign period and the daily hour window, and write several variants of the comment so the exact text does not repeat.
And what does it cost?
Auto-comment campaigns are in the Facebook Plan at $10 a month (500 EGP), and with Instagram in the FB & IG Pro plan at $25 (1,000 EGP). There is no Meta fee on top; a comment on your own post is not a paid conversation. Full pricing is here.
Run a campaign on your longest-lived post
Connect your page, pick the ad post running now, and write three variants of the comment. And if your post lives a single day, we told you above not to run it.