Best Practices (Messaging)

• Use environment variables: Store your api_key in environment variables on your backend, never in frontend code.
• Validate recipients: Normalize and validate phone numbers and email addresses before sending.
• File URLs: Ensure WhatsApp file URLs are publicly reachable over HTTPS and sized appropriately.
• Respect quotas: Monitor remaining_capacity fields and avoid spamming end users.
• Error handling: Always check success and message fields and implement retries only for transient failures.