WhatsApp by Meta allows businesses to send different types of messages, which are categorized into the following key types:
Marketing Messages:
These messages are designed for promotional purposes. They include offers, discounts, product announcements, and campaigns intended to engage customers and increase sales and can be accompanied by a media file as an attachment. For example:
- “Get 20% off on your next purchase! Use code SAVE20.”

Utility Messages (Transactional Messages):
Utility or transactional messages provide important updates and information that users expect from businesses. These can include order confirmations, delivery notifications, or reminders about appointments. Examples:
- “Your order #1234 has been shipped and will arrive by September 20.”
- “Reminder: Your appointment is scheduled for tomorrow at 10 AM.”

Authentication Messages:
These messages are used to verify user identities or provide secure access to accounts, commonly in the form of two-factor authentication (2FA) or one-time passwords (OTPs). Examples include:
- “Your one-time password is 123456.”
- “Use this code to verify your login: 987654.”

Service Messages:
Service messages are intended to provide support or resolve customer issues. These messages can include responses to customer inquiries or ongoing service updates. For example:
- “Thank you for reaching out. We are reviewing your request and will get back to you soon.”

Meta has a standard charge on the each above category of messages and by default Meta servers will identify your messages and catgorize them accordingly.
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Each of these message types must adhere to WhatsApp’s guidelines and may require customer consent, especially for marketing and promotional content.