34 out of 100 customers who hadn't returned for over 6 months responded to a single SMS message and booked an appointment. Not one, but twelve service centers. Not a one-time action, but a repeatable, automatic process. And zero hours of manual work after implementation.

Car service chain — visualization of SMS reactivation campaign scale
Car service chain — visualization of SMS reactivation campaign scale

Problem: 5,100 customers leaving silently

A car service chain (12 locations, central and western Poland) came to Ad Plus with a specific problem: they knew they were losing customers after the first visit, but didn't know why or how many.

CRM database audit revealed numbers the owner wished he'd seen earlier:

  • 8,400 active records in CRM
  • 61% (5,100 customers) — last visit over 12 months ago
  • 23% (1,930 customers) — last visit 6–12 months ago
  • Estimated value of "dormant" customers: PLN 1,540 average LTV × 5,100 = PLN 7.85M
CRM database segmentation visualization
CRM database segmentation visualization — customer distribution by time since last visit

Solution: 3-SMS sequence with vehicle model-level personalization

We designed a sequence of 3 SMS messages sent automatically after identifying a "dormant" customer in CRM. The key element: each SMS pulled the vehicle model and last service — it sounded like a message from a mechanic who remembers your car.

9-day implementation timeline and results after 90 days
9-day implementation timeline visualization and results after 90 days of campaign

Results after 90 days of reactivation campaign

34%total conversion — visit reactivation
94%open rate SMS 1
21%response rate SMS 1 within 48h
PLN 4,200total campaign cost
9,114%

SMS campaign ROI

Campaign cost: PLN 4,200 · Revenue from reactivated customers (90 days): PLN 387,000

Most common questions before SMS automation implementation

Won't customers feel harassed?

With 3 SMSs over 21 days and an opt-out option ("reply NO"), the unsubscribe rate was 1.8%. 73% of customers who received SMS 2 with the BYAF formula didn't unsubscribe despite not purchasing.

Do I need my own developer?

No. CRM integration with an SMS platform (Smsapi.pl, Infobip, MessageBird) takes 2–4 hours today using ready-made connectors. We handle this as part of the implementation.

Does this work in industries other than automotive?

Yes. We use this model for beauty salons, IT services, law firms. The mechanism is universal — only the trigger and content change.

How long do the effects last?

Customers reactivated via SMS statistically return 2.3 times within the next 12 months — similar to "active" customers in the database. Reactivation restores them to the normal purchasing cycle.

What if my database is small?

Reactivation campaigns work from 200 records. For smaller databases, we lower the segmentation threshold and shorten the sequence to 2 messages. ROI remains positive even with 500 records.