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Compliance

WhatsApp Messaging Rules

WhatsApp delivery depends on conversation state. Postly should make these rules visible before users schedule or send.

Free-form WhatsApp messages are only allowed inside the active 24-hour customer service window. Templates are required for new conversations, expired windows and bulk campaigns.

Workflow

  1. 1Check whether the recipient has messaged the business within the last 24 hours.
  2. 2Allow free-form replies only inside that active customer service window.
  3. 3Require templates when the business starts the conversation.
  4. 4Require templates after the 24-hour window expires.
  5. 5Require templates for bulk and campaign messaging.

Inside 24 hours

Free-form replies are allowed when the user recently messaged the business.

New outreach

Business-initiated messages require approved templates.

Bulk campaigns

CSV and Google Sheets sends should use templates and opt-in contacts.

Free-form messages

Free-form messages are normal text or media replies, but they are only allowed while the customer service window is active.

Template messages

Templates are pre-approved messages used for new conversations, expired windows, scheduled outreach and campaigns.

Validation behavior

If a scheduled free-form message becomes invalid before send time, Postly should pause or fail it, notify the user and prompt template conversion.

What Postly keeps lightweight

Connection

Meta Embedded Signup, WABA mapping, phone number sync and secure token storage.

Messaging

Free-form replies, approved templates, scheduling validation and delivery status.

AI replies

Reply generation through Postly AI Studio credits when credits are available.

Exports

Contacts, messages, conversations and campaign results for CRM import.