What's a WhatsApp Drip Campaign?
A drip campaign is a series of pre-scheduled messages sent over time based on triggers and user behavior. On email, this is standard. On WhatsApp, it's incredibly powerful โ but also incredibly easy to mess up.
The key difference: WhatsApp is personal. Your messages sit alongside family chats and friend groups. Get it right, and you have direct access to your customer's attention. Get it wrong, and they block you. There's no middle ground like email's promotions tab.
WhatsApp Drip vs. Email Drip: Key Differences
| Factor | Email | WhatsApp | |--------|-------|----------| | Open rate | 18-25% | 90-98% | | Click rate | 2-5% | 15-30% | | Response rate | 1-3% | 20-40% | | Tolerance for frequency | Daily is acceptable | 2-4x per week max | | Content length | Long-form OK | Short, punchy preferred | | Rich media | Limited | Images, video, documents, buttons | | Cost | Near zero | Per-message pricing | | Blocking risk | Unsubscribe | Block = permanent loss |
The cost and blocking risk mean you need to be more strategic. Every message must earn its place.
Designing Your First Drip Sequence
The Welcome Sequence (Every Business)
**Day 0 (Immediate):** Welcome message "Hi {{name}}! Welcome to {{brand}}. Here's what you can expect from us on WhatsApp: order updates, exclusive offers, and quick support. Reply STOP anytime to opt out."
**Day 1:** Value delivery Send something useful โ a guide, a tip, a discount code. Not a sales pitch. "Here's our quick guide to [relevant topic]: [link/PDF]. Thought you'd find it useful."
**Day 3:** Social proof "Over {{number}} customers trust {{brand}} for {{product/service}}. Here's what {{customer_name}} had to say: [testimonial image/video]"
**Day 5:** Soft CTA "Have you had a chance to check out [product/resource]? If you have questions, just reply here โ we're real humans, not just a bot."
**Day 7:** Offer "Here's something special for you: [offer details]. Valid till [date]. [Quick reply button: Shop Now | Tell Me More]"
E-commerce Post-Purchase Sequence
**Trigger:** Order placed
**Immediate:** Order confirmation with details
**Shipped:** Tracking link and expected delivery date
**Day of delivery:** "Your order should arrive today! Let us know once you receive it."
**Day 3 post-delivery:** "How's your {{product}}? Everything good?"
**Day 7:** Care tips or usage suggestions related to the product
**Day 14:** Cross-sell โ "Customers who bought {{product}} also loved {{related_product}}." Include image and one-tap buy link.
**Day 30:** Replenishment reminder (if applicable) or new arrivals notification
SaaS/Service Trial Sequence
**Day 0:** "Welcome to your {{product}} trial! Here's how to get started in 3 steps: [guide link]"
**Day 2:** "Have you tried {{key_feature}}? It's the one thing most users say they can't live without. Here's a 60-second walkthrough: [video]"
**Day 5:** "How's your trial going? Common questions at this stage: [FAQ link]. Or just ask us here."
**Day 8:** "You're halfway through your trial. Here's what you can do next week to get the full value: [checklist]"
**Day 12:** "Your trial ends in 2 days. Ready to continue? [Upgrade link]. If you need more time, reply and we'll extend it."
**Day 14:** "Trial ended. We've saved your setup. You can pick up where you left off anytime: [link]. Questions? Reply here."
Message Design Principles
Keep It Short WhatsApp messages should be 50-150 words. If you need to share more, link to a page or send a PDF. Don't write essays in chat bubbles.
One Message, One Purpose Don't combine an order update with a promotional offer. Each message should have a single clear purpose.
Use Rich Media - Product images get 2-3x more engagement than text-only - Short videos (under 60 seconds) have the highest engagement - PDFs work well for guides, catalogs, and price lists - Quick reply buttons reduce friction โ tap instead of type
Include an Exit Every promotional message should make it easy to opt out. This is both a WhatsApp policy requirement and good practice. "Reply STOP to unsubscribe" at the end of the first message in a sequence.
Timing and Frequency Rules
Best Times (India) - **B2C:** 10 AM-12 PM and 7 PM-9 PM - **B2B:** 10 AM-12 PM and 2 PM-4 PM - **Avoid:** Before 9 AM, after 9 PM, during lunch (1-2 PM)
Best Times (Gulf) - **General:** 10 AM-12 PM and 4 PM-7 PM - **During Ramadan:** After Iftar (7 PM-10 PM) - **Avoid:** Friday mornings
Frequency Caps - **Transactional sequences:** As needed (order updates, shipping, delivery) - **Nurture sequences:** 2-3 messages per week maximum - **Promotional:** 1-2 per week maximum - **Total across all sequences:** No more than 4-5 messages per week
If a contact is in multiple sequences simultaneously, cap total messages. Nothing kills engagement faster than 3 messages in one day from the same business.
Behavioral Triggers and Branching
The best drip campaigns adapt based on behavior.
Trigger: No Response After 2 Messages Reduce frequency. Move to a slower cadence. They might be busy, not uninterested.
Trigger: Clicked a Product Link Send more information about that specific product. They've shown interest โ don't send generic content.
Trigger: Asked a Question Pause the drip sequence. Route to a human agent. Resume the sequence after the conversation ends.
Trigger: Made a Purchase Move from the sales sequence to the post-purchase sequence. Don't keep selling what they just bought.
Trigger: Replied STOP Immediately stop all sequences. Confirm: "You've been unsubscribed. You'll only receive order-related messages from now on. Reply START if you change your mind."
Avoiding the Block
When a user blocks your WhatsApp Business number, you lose them permanently. You can't message them again. Here's how to avoid it:
1. **Always get opt-in first.** Never add people to drip campaigns without consent. 2. **Deliver value before selling.** The ratio should be 3:1 โ three valuable messages for every promotional one. 3. **Respect quiet hours.** A message at 6 AM will get you blocked faster than bad content. 4. **Read the room.** If someone hasn't opened your last 3 messages, stop sending. 5. **Make opting out easy.** Paradoxically, making it easy to unsubscribe reduces blocks. People unsubscribe instead of blocking.
Measuring Drip Campaign Performance
Key Metrics - **Delivery rate:** Should be 95%+. Lower means quality issues. - **Read rate:** 85%+ is healthy. Below 70% means content or timing problems. - **Response rate:** Varies by message type. Promotional: 5-10%. Conversational: 20-40%. - **Conversion rate:** Track the specific action each message drives. - **Drop-off rate:** Where in the sequence do people stop engaging? - **Block rate:** Should be under 1%. Above 2% is a red flag. - **Opt-out rate:** 1-3% per campaign is normal. Above 5% means you're over-messaging.
A/B Testing on WhatsApp Test one variable at a time: - Message timing (morning vs. evening) - With image vs. without image - Short text vs. slightly longer text - Button CTA vs. link CTA - Emoji usage vs. no emoji
Split your audience 50/50 and measure response rates.
WhatsApp Business API Cost Considerations
WhatsApp charges per conversation, categorized as: - **Marketing:** You initiate with promotional content - **Utility:** Order updates, shipping notifications - **Authentication:** OTP, verification - **Service:** Customer-initiated within 24-hour window (free)
Marketing conversations cost the most. Plan your drip campaigns with cost in mind. A 7-message drip sequence to 10,000 contacts isn't free โ calculate ROI before scaling.
AutoChat provides conversation cost tracking per campaign so you can see exactly what each sequence costs and what it generates.
[Build your first WhatsApp drip campaign with AutoChat](https://autochat.in) โ templates, scheduling, behavioral triggers, and analytics included.