How to enable native files in Facebook Messenger?

When an operator sends a PDF, DOCX, or another document in a Facebook Messenger dialog, the customer by default receives a text message with a link to the file. After you enable the option on the instance, the same file arrives as a normal Messenger attachment.

A root administrator turns it on. Operators do not need extra setup — they attach a file in the chat as usual.

When you need this

Customers complain that they see a long link in the text instead of a file.
You want documents to open in Messenger as attachments (a file bubble), not as a URL in the message.
You want to enable the feature safely on a test instance first, then on production.

Key terms

In the UI the toggle is named Facebook native file attachments (category Integrations).
Default is off — instance behavior does not change until a root administrator enables it.
The toggle affects file attachments only (PDFs, documents, and similar). Images and video work as before.
After you turn it off, the system sends a text URL again. No instance restart is required.
The feature applies to sends from Operator Line to the Facebook Messenger channel.

Before you start

You are a root administrator and can open Instance settings.
Facebook Messenger is already connected on the instance (see Connect Facebook Messenger / Instagram).
Optionally you already validated the behavior on a test instance.

Step-by-step

Go to Menu → Settings → Instance settings.
Scroll to the platform feature toggles block (Feature flags).
Expand the Integrations category.
Turn on Facebook native file attachments and wait for save.
Open a Facebook Messenger dialog in Operator Line, attach a PDF (or another document), and send it.
Check on the customer side in Messenger: the file should appear as an attachment, not only as a URL in the text.

What happens next

Operators send files the same way as before (attachment control in the chat).
The customer in Facebook Messenger receives the document as a native attachment.
If there is text with the file, the text is sent as a separate message after the attachment.

How to verify it worked

Turn the toggle on → send a PDF in a test Facebook chat → Messenger shows a file attachment.
Turn the toggle off → send again → the customer sees a link in the text again.