WhatsApp Business on JustCall: Frequently Asked Questions
WhatsApp Business on JustCall: Frequently Asked Questions
Can I use my existing WhatsApp number?
Only if it's not currently registered with WhatsApp personal or WhatsApp Business app. To use an existing number, you must first delete it from the WhatsApp app before connecting it to JustCall via the WhatsApp Business API.
Can I use the same number for SMS and WhatsApp?
Yes. A single phone number can be used for both SMS (via JustCall) and WhatsApp (via the WhatsApp Business API). Customers choose their preferred channel; messages arrive in the same JustCall inbox.
How much does WhatsApp messaging cost?
WhatsApp uses conversation-based pricing. A "conversation" is a 24-hour window from the first business message or customer message:
| Conversation type | Approximate cost (US) |
|---|---|
| Utility (transactional) | $0.005–$0.015 |
| Authentication (OTP) | $0.005–$0.015 |
| Marketing (promotional) | $0.02–$0.05 |
| Service (customer-initiated) | Free (first 1,000/month) |
Rates vary by country. Check Meta's pricing page for current rates.
Is there a message limit?
WhatsApp limits the number of business-initiated conversations based on your messaging tier:
| Tier | Conversations per 24 hours |
|---|---|
| Tier 1 | 1,000 |
| Tier 2 | 10,000 |
| Tier 3 | 100,000 |
| Tier 4 | Unlimited |
You automatically move up tiers by maintaining high quality ratings and increasing volume gradually.
Can I send images, videos, and documents?
Yes. WhatsApp supports:
- Images (JPEG, PNG) up to 5 MB
- Videos (MP4) up to 16 MB
- Audio (MP3, OGG) up to 16 MB
- Documents (PDF, DOC, XLS, etc.) up to 100 MB
- Location sharing
- Contact cards (vCards)
Do I need 10DLC registration for WhatsApp?
No. 10DLC is an SMS-specific carrier requirement. WhatsApp messages are delivered over the internet, not through US carrier networks. WhatsApp has its own compliance system (Meta Business verification).
Can I use WhatsApp for bulk messaging?
Yes, using approved message templates. You can send template messages to multiple contacts, but:
- Each message must use an approved template.
- Each message must include personalized variables (not identical to all recipients).
- Stay within your messaging tier limits.
- Monitor quality ratings — bulk sends to unengaged audiences lower your quality score.
What happens if a customer blocks me on WhatsApp?
- You won't receive a notification that you've been blocked.
- Messages you send will show as "Sent" but not "Delivered."
- Your quality rating may be affected if many recipients block you.
Can my team see WhatsApp conversations in the shared inbox?
Yes. WhatsApp conversations appear in the JustCall SMS Inbox alongside SMS conversations. You can assign, filter, and manage them the same way. WhatsApp conversations are marked with the WhatsApp icon.