Database reactivation for UK businesses

Turn the Dormant Leads in Your CRM Into Booked Calls

An always-on AI system that finds every lead that's gone quiet and re-engages them by SMS, email, WhatsApp and voice, until they book or opt out. No more ad spend required.

Works with your existing CRM. Only opted-in contacts are ever contacted.

AssignX

562

Responses in week one

15,000

Dormant leads reactivated

0

Manual follow-up from the team

The problem

You've already paid for these leads. They're just sitting there.

Every business that runs ads, content or lead magnets builds up the same thing: a CRM full of people who were interested once and never converted.

A slow first reply. Follow-up that stopped after a few attempts. A rep who rightly moved on to newer leads. A lead who got busy and forgot what they enquired about. None of that means they've stopped being in the market.

Putting a rep on the dormant list burns your best people's time. One-off email blasts get a handful of replies and a wave of unsubscribes. So the list keeps growing, and new lead costs keep rising.

That's the leaky bucket. Reactivation plugs it.

Read more: what to do with old leads in your CRM →

How it works

How reactivation works

  1. 01

    Connect to your CRM

    We connect to your CRM and run a standing filter that finds every opted-in contact who's been inactive for 60 days or more. Unsubscribed contacts are excluded permanently.

  2. 02

    Remember why they're there

    We pull the original reason each lead is in your database, a past enquiry, a demo, a lead magnet or an abandoned booking, so every message references something real.

  3. 03

    Start a conversation

    Each lead gets a simple, personal message, not a pitch. Something like: "Hey Sarah, is this the same Sarah who asked about a quote a few weeks ago?"

  4. 04

    Follow up across the right channels

    SMS and email for B2B, plus LinkedIn where you're already connected. WhatsApp, SMS and Instagram for B2C.

  5. 05

    Book or hand over

    The AI holds a real back-and-forth and either books the appointment itself or hands the conversation to your team the moment intent turns positive.

  6. 06

    Call the ones who stall

    When a conversation shows real interest but goes quiet, an outbound voice call picks it up and closes it live.

Always on

Not a one-off campaign. A system that never stops.

Most reactivation is a single blast against today's list. Ours runs continuously. Every lead that goes quiet from now on is caught automatically and worked, so your database never fills back up with dead leads.

  • Runs on every opted-in contact who crosses the dormancy threshold
  • Campaigns refreshed quarterly
  • Every message, call and booking written back to your CRM in real time

B2B

Past demos, cold replies and stalled deals

SaaS, agencies, recruitment and other B2B services with a CRM full of past demos, cold replies and stalled deals. Re-engaged by email and SMS, plus LinkedIn where you're already connected.

B2C

Enquiries that never booked

Dental, aesthetics, home services and other high-ticket consumer businesses with enquiries that never booked. Re-engaged by WhatsApp, SMS, Instagram and voice.

Data protection

Your data stays yours

We only ever contact opted-in leads. Anyone unsubscribed or opted out is filtered before enrolment and never re-added. Your data stays in your CRM: we don't copy it elsewhere, sell insight from it or use it for anyone else. Access is limited to the fields needed to run the campaign, over encrypted connections, with every action logged back to your CRM for a full audit trail.

The alternative

Reactivation system vs a one-off email blast

Messages

One-off blast or rep on the list

One generic message to everyone

Autonomous Stack reactivation

Personal, based on why each lead is there

Conversation

One-off blast or rep on the list

Replies sit in an inbox

Autonomous Stack reactivation

AI replies, qualifies and books

Channels

One-off blast or rep on the list

Usually just email

Autonomous Stack reactivation

SMS, email, WhatsApp, Instagram, LinkedIn, voice

Follow-up

One-off blast or rep on the list

Stops after a few attempts

Autonomous Stack reactivation

Continues until they book or opt out

New dormant leads

One-off blast or rep on the list

Ignored until the next blast

Autonomous Stack reactivation

Caught automatically, forever

Team time

One-off blast or rep on the list

Hours of rep time

Autonomous Stack reactivation

Your team only speaks to interested leads

Results

Results from reactivation

AssignX

AssignX · SaaS and agency

AssignX had a database of around 15,000 leads built up across different campaigns, with no consistent way of re-engaging them. We launched an evergreen reactivation campaign for each funnel, with every lead getting a message based on where they originally came from. The agent picked up every reply, qualified it and booked the ones ready to talk.

562 responses in the first week, with no manual follow-up from the team.

"We'd built up a big database and knew some of our old leads would be gold. Replies started coming in the first week of the reactivation, then the agent handled everything until they were booked."
Noah, Founder & CEO

See all case studies →

What's included

Everything set up and managed for you

  • Continuous CRM monitoring for dormant, opted-in leads
  • Source reconstruction, so every message references why the lead is there
  • Two-way conversational AI over SMS, email, WhatsApp and Instagram
  • Your choice: the AI books, or hands over to your team
  • Voice calls for stalled but interested conversations
  • Booking confirmations and attendance tracking
  • Human escalation for anything sensitive or outside the brief
  • Real-time CRM write-back and quarterly campaign refreshes

Frequently asked questions

Aren't those leads dead for a reason?
Usually not. Most went cold because of slow replies or follow-up that stopped, not because they said no. Many are still in the market and simply missed your earlier messages.
My reps already follow up. Why do I need this?
Reps should focus on new leads. This picks up where they stop, so leads that would otherwise leak out of the bucket get worked without taking your best people's time.
Can't we just send an email ourselves?
A one-off email gets a few replies and then stops. This holds a real conversation across several channels, books the interested ones and keeps running on every lead that goes quiet.
Is it GDPR compliant? Will it annoy people?
Only opted-in contacts are enrolled, and anyone who unsubscribes is excluded permanently. Messages are personal and reference why the lead is in your database, so they read as a genuine follow-up, not a blast.
How quickly will I see results?
Often within the first week. AssignX received 562 responses in week one from a 15,000-lead database.
We're not on GoHighLevel. Does it still work?
Yes. We work natively with GoHighLevel and connect to HubSpot and Salesforce through a custom integration.
How big does my database need to be?
It works best with 2,500 or more contacts sitting dormant in your CRM.
Does the AI book appointments itself?
Your choice. It can book straight into your calendar, or hand the conversation to your team as soon as the lead is interested.

Before you spend more on ads, look at what's already in your CRM.