Deregister a WhatsApp Business phone number from the Facebook Hosted System. This operation removes the phone number from the WhatsApp Business Platform and makes it available for re-registration if needed.

Important Notes:

• Phone number must be currently linked in Facebook Hosted System
• Phone number must be registered on the WhatsApp Business Platform
• Cannot deregister phone numbers associated with SMB accounts
• Rate limiting is enforced to prevent abuse
• Deregistration triggers activity logging for audit purposes

Rate Limiting: Standard Graph API rate limits apply with additional restrictions for registration operations. Use appropriate retry logic with exponential backoff.

Caching: Deregistration status changes are immediate and should not be cached.

{
  "success": true
}