24-hour messaging window

The 24-hour messaging window is the time an Instagram business account may message a person. The person writes first; for most actions the window lasts 24 hours from that message, and their next message opens it again.

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What opens it

A message from the person to your professional account.
A response to your private reply, including a tap on a button that answers it.

Meta also describes longer windows for special cases, such as click-to-Direct ads, and a separate window for replies by a human agent, each with its own conditions.

Sources: Meta, Instagram messaging, Meta, Messenger Platform policy, checked 2026-10-26.

What it means for keyword campaigns

A comment alone does not open the window; it allows one private reply. That is why a comment-to-DM chain starts with a short message and a button.

What it means for team replies

The window is a reason to answer fast. In prtner each Direct message reaches your team’s Telegram as a card the moment it is saved, with a draft ready. Instagram in Telegram.

FAQ

Questions

Can a business message someone first on Instagram?

No. A business can write only after the person has sent it a message.

How long is the Instagram messaging window?

For most actions, 24 hours from the person’s message. Meta describes longer windows for some cases, such as click-to-Direct ads.

Does a comment open the 24-hour window?

No. A comment allows one private reply. The window opens when the person responds.