Why templates exist

Templates are how the WhatsApp Business Platform balances business needs with user protection. Outside the 24-hour window, every business message must use a template that Meta has reviewed in advance. This stops companies from cold-blasting promotional content and gives customers a consistent baseline of quality.

How a template works

A template is a fixed message body with optional variables for personalisation, such as a customer name or order number. You submit the template, Meta reviews it, and once approved you can fire it through the API by passing the variable values for each recipient. Each template has a name, language, category and content body.

The three categories

Marketing templates promote products, offers and announcements. Utility templates relate to a specific transaction or account, such as order confirmations and shipping updates. Authentication templates deliver one-time codes for login or verification. Each category is priced differently and has different approval criteria.

Variables done right

Variables make templates feel personal but they must always have meaningful content. "Hi {{1}}, your order {{2}} is ready" is fine. "{{1}}{{2}}{{3}}" is rejected because Meta cannot verify the message context. Provide example values when submitting so the reviewer understands intent.

Buttons and headers

Templates can include up to ten quick reply buttons or call-to-action buttons that link out or trigger a phone call. Headers can carry an image, video, document or text. Use headers to make confirmation and shipping updates feel polished, but keep them relevant to the message body.

What gets approved fast

Clear, transactional content. Templates that read like a notification rather than a sales pitch sail through. "Your appointment with Dr Smith is confirmed for tomorrow at 10am" is approved within hours. "Don't miss out on our incredible deal" gets stuck in review.

Best practices

Keep templates under 1024 characters. Lead with the most important information so it shows in notifications. Use sentence case rather than ALL CAPS. Always include an opt-out instruction in marketing templates. Maintain a library of well-written templates rather than creating new ones for every minor change, since heavy template churn slows your approval times.

Versioning

Templates cannot be edited after approval. To change the content, create a new version with a different name and pause the old one. Naming conventions like "order_confirmation_v2" save you from confusion as your library grows.