Skip to content
Englishالعربية
Build it for me

Document · link

Send a document with its file name.

PDF and Office files up to 100 MB. filename sets the name and icon the customer sees; the caption is optional.

to and the message ids are n8n expressions that read the WhatsApp Trigger right before this node ($json.messages[0].from / .id). For a manual test, replace them with a number and a message id.

The JSON body

HTTP Request → Body → JSON
POSThttps://graph.facebook.com/v26.0/YOUR_PHONE_NUMBER_ID/messages
{  "messaging_product": "whatsapp",  "recipient_type": "individual",  "to": "{{ $json.messages[0].from }}",  "type": "document",  "document": {    "link": "https://example.com/invoice-4821.pdf",    "filename": "invoice-4821.pdf",    "caption": "Your invoice for order #4821."  }}

Limits & common mistakes

  1. Supported: PDF, DOC/DOCX, XLS/XLSX, PPT/PPTX, TXT; 100 MB max. Other types may send but not display properly.

    Source (opens in a new tab)

  2. Put the extension in filename; it sets the icon the customer sees.

    Source (opens in a new tab)

  3. Caption: 1,024 characters max.

    Source (opens in a new tab)

  4. Public link, cached 10 minutes; an uploaded id is recommended.

    Source (opens in a new tab)

  5. 24-hour window.

    Source (opens in a new tab)
How to set up the credential in n8n
  1. In n8n, open Credentials → Create credential and pick Header Auth.
  2. Fill in the two fields:
    NameAuthorization
    ValueBearer <your token>
  3. Open the pasted node. Authentication is already Generic → Header Auth; choose the credential you just made.
  4. Use a System User token from Meta Business settings; the token on the API Setup page expires within hours.Source (opens in a new tab)Source (opens in a new tab)

Your token lives in n8n only. I never ask for it.

Don't have time to build it? I'll build it for you.

Build it for me

WhatsApp and n8n are trademarks of their owners. Pixtaha isn't affiliated with or endorsed by Meta or n8n.