Add a preverified phone number to a WhatsApp Business Account. This endpoint is used by Partners to create a pool of Partner owned numbers that end clients can purchase.

Use Cases:

• Add new phone numbers to scale messaging operations
• Set up phone numbers for different business locations
• Manage phone number inventory for business messaging
• Configure phone numbers for specific messaging workflows

Rate Limiting: Standard Graph API rate limits apply. Use appropriate retry logic with exponential backoff.

Phone Number Requirements:

• Must be in E.164 format (e.g., +1234567890)
• Must not be already registered to another WhatsApp Business Account
• Must be capable of receiving SMS for verification
• Must comply with WhatsApp's business messaging policies

{
  "phone_number": "+1234567890"
}

{
  "id": "1234567890123456"
}