Instagram DM automation limits: what Meta allows, and what tools choose

Meta lets an Instagram professional account send one private reply per comment, within 7 days of the comment, and up to 750 private replies an hour to comments on posts and reels. More messages need the person to reply first. Any other cap — 100 an hour, 1,000 a month — is a tool's own choice, not Meta's.

750/hourMeta's documented ceiling on private replies to post and reel comments, per Instagram professional account.

Updated 1 October 2026

Every comment-to-DM tool runs on the same Meta API, so every one of them lives inside the same rules. The confusion comes from tools printing their own plan limits next to Meta's, and blog posts repeating both as though they were the same thing. This page keeps them apart.

What does Meta actually document?

RuleWhat Meta saysSource
Which accountsAn Instagram professional account — creator or business. Every limit below is per professional accountMessaging API
Private replies per commentOne message to the person who commentedPrivate replies
When a private reply can be sentWithin 7 days of the comment. For Instagram Live, only while the broadcast is onPrivate replies
Private replies to post and reel comments750 calls an hour per professional accountRate limits
Private replies to Live comments100 calls a second per professional accountRate limits
Messages with text, links, reactions or stickers100 calls a second per professional account; 10 a second for audio or videoRate limits
After the private replyFollow-ups only if the person responds, and within 24 hours of their responsePrivate replies
Replying to a DM someone sent youWithin 24 hours of their messageMessaging API
Human Agent tagLets a person — not an automation — reply manually within 7 daysSend messages
Read from Meta's developer documentation on 1 October 2026. Meta changes these pages without notice, and the links are the authority, not this table.

Two of those do most of the work. One reply per comment means a tool gets one chance to deliver your link, so whatever it sends has to be the link or a button that leads to it. Seven days means a comment that waits too long can never be answered at all.

What do tools choose for themselves?

Everything else. A tool can send fewer than Meta allows — to keep a plan affordable, or to stop one viral post spending an account's whole hour — and it can count in units Meta does not use, such as DMs a month or contacts a month. These are each tool's own published limits, read off their pricing pages on 1 October 2026:

ToolWhat it limitsIts own published number
Pullsy Store, Store planDMs an hour, per Instagram account100 an hour; comments past it are queued, not dropped
LinkDMDMs a month1,000 on Free; 25,000 on Pro
InstantDMDMs an hour750 an hour on Legend Pro
ManyChatActive contacts a month25 on Free; 250 on Essential; 2,500 on Pro
Each tool's figure is from its own pricing page, linked, as shown to a visitor on 1 October 2026; plans change, so check before you rely on one.

Figures such as "200 DMs an hour" circulate in blog posts and videos as Instagram's limit. We could not find them anywhere in Meta's documentation, so treat them as unverified. The documented number for private replies to posts and reels is the 750 an hour above.

Why Pullsy Store sends 100 an hour and queues the rest

A storefront's Store plan includes 100 private replies an hour for each connected Instagram account — our number, well inside Meta's 750, sized for a creator answering their own comments. When a post brings in more matching comments than that, nothing is thrown away:

  • Comments past the hour's allowance wait in a queue, oldest first, and go out as the rolling hour frees up room.
  • The queue stops half a day before Meta's seven days run out, so a reply is never attempted on a window that has already closed — that would spend the one reply Meta allows on nothing.
  • One DM per person per rule, seven days by default, so the same person commenting ten times takes one place in the queue, not ten.
  • An optional cap per rule. Past it, commenters get a public reply asking them to DM you the keyword instead, which opens the 24-hour window from their side.

The arithmetic, so it is not a surprise: 100 an hour is 2,400 a day, or about 15,600 across the six and a half days the queue works in. A post that pulls in more matching comments than that in its first week will have some go unanswered, on any tool sending at that rate.

Worth asking before you move 🤔

How many automated DMs can an Instagram account send per hour?

Meta's rate-limit documentation allows 750 private replies an hour per Instagram professional account for comments on posts and reels. Tools often send fewer by choice: Pullsy Store's Store plan sends up to 100 an hour per account and queues the rest.

How long after a comment can a tool send the DM?

Up to 7 days after the comment, according to Meta's private replies documentation. For Instagram Live comments the reply has to go while the broadcast is still on. After that the comment can no longer be answered privately.

Can an automation send more than one message to a commenter?

Only if the person responds. Meta allows one private reply per comment; if the commenter replies or taps a button in it, the account can continue the conversation within 24 hours of that response.

Is 200 DMs an hour Instagram's limit?

Not in Meta's documentation as of 1 October 2026. The documented figure for private replies to post and reel comments is 750 an hour per professional account. Numbers like 200 an hour are repeated widely but we could not trace them to Meta.

Do I need a business account for Instagram DM automation?

You need a professional account, which can be either a creator account or a business account. Meta's messaging APIs work only with professional accounts, so a personal Instagram account cannot use any comment-to-DM tool.

What happens to comments over Pullsy Store's 100-an-hour limit?

They are queued, not dropped, and sent oldest first as the hour frees up — as long as the comment is still inside Meta's 7-day window. The queue stops half a day early so the one reply Meta allows is never wasted.

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