ChatGPT Ads · Status at source date: Newsletter archive
WhatsApp Business API ends its free reply window from 1 October
Meta will charge for WhatsApp Business API conversations that were previously free, with the 24-hour free reply window ending on 1 October. Meta Business Agent AI messages change pricing from 1 August.

Why it matters for advertisers
For you, this means WhatsApp support and marketing flows gain a per-conversation cost, so model volumes now and budget accordingly.
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Original newsletter text and archive evidence
WhatsApp Business API ends its free reply window from 1 October
Meta will charge for WhatsApp Business API conversations that were previously free, with the 24-hour free reply window ending on 1 October. Meta Business Agent AI messages change pricing from 1 August. For you, this means WhatsApp support and marketing flows gain a per-conversation cost, so model volumes now and budget accordingly.
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