Check In With Past Customers (90-Day System)

Stop leaving money on the table. The cheapest customer to sell to is one who has already bought from you. Yet most micro-businesses spend all their energy chasing new leads whilst ignoring the people who already know, like, and trust them.

Here's the uncomfortable truth: your past customers are either buying from you again, or they're buying from your competitors. The difference? Whether you stayed in touch.

You don't need an expensive CRM or a complicated marketing automation system. You need a simple, non-salesy way to check in with people who've already said yes to you once. This isn't about aggressive follow-up sequences or pushy sales tactics—it's about genuine relationship maintenance that happens to be the highest-ROI activity in your business.

The numbers don't lie: acquiring a new customer costs five times more than retaining an existing one. Yet most small business owners have no system whatsoever for staying in touch with past buyers. They complete the sale, deliver the service, and then... silence.

This guide shows you how to build a 90-day check-in system that takes 45 minutes to set up and generates repeat business, referrals, and crucial feedback without feeling salesy or awkward.

Quick Navigation:

• •Quick Start (5 Minutes)
• •Complete Step-by-Step Guide
• •Troubleshooting

Quick Start (5 Minutes)

If you just want to get your first check-ins sent today, follow these five steps:

1. Identify your last 10 customers and their purchase dates.

Open your order history, invoicing system, or payment processor. Export the last 10 customer names, email addresses, and purchase dates into a simple spreadsheet.

2. Choose the appropriate quick check-in template.

Use this proven template:

Subject: Quick question about [their purchase/project]

Hi [Name],

I was reviewing my client list and realised it's been [timeframe] since we worked together on [specific project/purchase].

I wanted to check in—how has [product/service] been working for you? Have you run into any questions or challenges I can help with?

No sales pitch here, just genuinely checking you're getting the results you needed.

[Your name]

3. Personalise the first sentence to reference their specific purchase.

Change "[specific project/purchase]" to something real: "your website redesign," "the garden clearance," "your bookkeeping setup." This takes 10 seconds per email and dramatically increases response rates.

4. Send the emails and wait 48 hours.

Don't overthink it. Send them now. Set a calendar reminder to check responses in two days.

5. Log the contact date in your tracking system.

Add a "Last Contact" column to your spreadsheet. Record today's date. This prevents you from accidentally contacting the same person twice or forgetting who you've reached out to.

✅ Completed the quick version? Move on to Create a Simple Retention Calendar or continue below for the detailed walkthrough that turns this into a repeatable system.

Complete Step-by-Step Guide: Building Your Check-In System

This builds on ensuring you can Collect Written and Video Testimonials—now you're creating the system that generates those testimonials naturally whilst also driving repeat business.

Step 1: Identify and Segment Your Customers

Not all past customers should receive the same message at the same time. Create three simple segments:

Recent Buyers (0-30 days post-purchase):

These customers are still in the honeymoon phase. They're most likely to provide feedback, spot issues early, and remember details about their experience. Priority: Feedback and problem-solving.

Mid-Cycle (30-90 days post-purchase):

The initial excitement has worn off, but they're actively using what they bought. They can provide the most valuable insights about real-world results. Priority: Results check-in and referral requests.

High-Value VIPs (any timeframe, but high spend/frequency):

Your top 20% of customers who generate 80% of revenue. They deserve special attention regardless of when they last bought. Priority: Relationship maintenance and exclusive updates.

Open your simple CRM or contact spreadsheet and add these columns:

• •Customer Name
• •Email/Phone
• •Last Purchase Date
• •Segment (Recent/Mid-Cycle/VIP)
• •Last Check-In Date
• •Next Action

Sort by purchase date and assign each customer to a segment. This takes 15 minutes for most micro-businesses.

Step 2: Determine the Check-In Goal

Your message changes based on what you're trying to achieve. Choose one primary goal per segment:

Pure Feedback: "How's it working?" Perfect for recent buyers. Uncovers problems early and generates testimonial material.

Usage Check: "Are you getting the most out of it?" Works for mid-cycle customers. Often reveals upselling opportunities or prevents churn.

Value Add: "Thought you'd find this useful." Best for VIPs. Share a relevant resource, tip, or update without asking for anything.

Referral Generation: "Know anyone else who needs this?" Only appropriate after you've confirmed they're happy. Never lead with this.

Don't try to accomplish multiple goals in one message. A check-in that asks "How's it going? Also, can you refer someone? Also, we have a new product" feels transactional and desperate.

Step 3: Draft the Perfect Non-Salesy Template

The key to non-salesy check-ins is making them genuinely about the customer, not about you. Here are three proven templates:

Template 1: Feedback Focus (Recent Buyers)

Subject: How's [product/service] working out?

Hi [Name],

You're now [timeframe] into using [product/service], and I wanted to check in.

What's working well? Have you hit any snags or questions I can help with?

I'm always looking to improve, so honest feedback—good or bad—is genuinely valuable.

[Your name]

Template 2: Usage Check (Mid-Cycle)

Subject: Getting the most from [product/service]?

Hi [Name],

I was thinking about your [project/purchase] and wanted to make sure you're getting the results you needed.

Are you seeing [specific outcome they wanted]? If not, I might be able to suggest a quick adjustment.

Let me know if you need anything.

[Your name]

Template 3: Value Add (VIPs)

Subject: Thought of you when I saw this

Hi [Name],

I came across [relevant article/tip/resource] and immediately thought of [their business/situation].

[One sentence explaining why it's relevant]

Hope it's useful. Let me know how you're getting on.

[Your name]

Notice what's missing: no "special offers," no "limited time deals," no "we've launched something new." Those belong in separate campaigns, not check-ins.

Your subject lines that get opened should be conversational and specific, not salesy and generic. "Quick question about your website" beats "Following up" every time.

Step 4: Choose Your Channel

Email isn't always the best option. Consider:

Use Email When:

• •It's a professional B2B relationship
• •You've primarily communicated via email before
• •You're reaching out to 10+ people at once
• •The relationship is more formal

Use Phone/WhatsApp When:

• •You have their mobile number and permission to use it
• •The relationship is more personal
• •They're a high-value VIP customer
• •Previous emails have gone unanswered
• •Your business naturally uses these channels (trades, local services)

Use Social Media DM When:

• •You're connected on the platform already
• •They're active there and you know they check messages
• •Your business has a strong social presence
• •Email feels too formal for your industry

The channel matters less than the consistency. Pick one you'll actually use and stick with it.

Step 5: Set Up Your Tracking System

The simplest system that you'll actually use beats the most sophisticated system you'll abandon. Here's the minimum:

In your spreadsheet or CRM, track:

• •Date of check-in
• •Channel used (email/phone/WhatsApp)
• •Response status (replied/no response)
• •Next action required
• •Next check-in date

Set calendar reminders for:

• •7 days after sending: Check for responses
• •14 days after sending: Follow up with non-responders (optional)
• •90 days after sending: Next check-in cycle

Don't overcomplicate this. A spreadsheet with conditional formatting (green for responded, red for no response) works perfectly for most micro-businesses.

Step 6: Implement the 90-Day Cycle

The magic number for staying top-of-mind without being annoying is quarterly contact. Every customer should hear from you at least once every 90 days.

This doesn't mean a check-in email every 90 days—it means some form of valuable contact:

• •Month 1: Check-in email
• •Month 2: Valuable content (blog post, tip, case study)
• •Month 3: Personal update or industry news
• •Month 4: Check-in email (cycle repeats)

By incorporating these touchpoints into a regular email plan, you create a rhythm where check-ins feel natural, not forced.

For your first 90 days:

• •Days 1-7: Send check-ins to Recent Buyers segment
• •Days 8-14: Send check-ins to Mid-Cycle segment
• •Days 15-21: Send check-ins to VIP segment
• •Days 22-90: Respond to replies, action feedback, send monthly value content

Step 7: Action the Response

What you do with replies matters more than the initial outreach. Create simple rules:

If They Reply Positively:

• •Thank them immediately
• •Ask if they'd be willing to provide a testimonial
• •Use specific referral scripts to ask: "Know anyone else who might benefit?"
• •Add them to your VIP segment if they're not already there

If They Reply With Problems:

• •Respond within 24 hours
• •Fix the issue immediately or schedule a call
• •Follow up after resolution to confirm satisfaction
• •Use the feedback to Improve Your Offer Using Customer Feedback

If They Don't Reply:

• •Don't take it personally—open rates average 20-30%
• •Send one gentle follow-up after 7-14 days
• •Move them to the next 90-day cycle
• •Try a different channel next time

If They Reply Negatively:

• •Apologise and take ownership
• •Offer a solution or refund if appropriate
• •Learn from the feedback
• •Don't remove them from future check-ins unless they ask—people's circumstances change

The goal isn't 100% response rate. It's consistent, genuine contact that keeps you top-of-mind for when they need you again or know someone who does.

Step 8: Scale the System

Once you've completed one cycle with your existing customers, expand:

Month 2: Add every new customer to the system automatically

Month 3: Segment by product/service type for more targeted messages

Month 4: Create templates for common responses to save time

Month 5: Test different check-in frequencies for different segments

Month 6: Review which segments generate the most repeat business and referrals

The system should take no more than 2-3 hours per month once established. If it's taking longer, you're overcomplicating it.

🎉 Completed? You've established a system to keep your existing customers engaged and loyal. You're ready for Create a Simple Retention Calendar.

Troubleshooting

What's Next

You've built the foundation of customer retention: a system for staying in touch without being pushy. Now it's time to expand this into a complete retention strategy.

Next Blueprint Step: Create a Simple Retention Calendar

You'll map out all your customer touchpoints for the next 12 months, ensuring no one falls through the cracks and every customer receives consistent value.

Go Deeper

Want to understand the full financial impact of retention?

• •Understanding Customer Lifetime Value (CLV) – For the full financial breakdown, understand the importance of retention by calculating Customer Lifetime Value (CLV).
• •Create a Win-Back Campaign for Lost Customers – If your check-ins reveal a high number of long-lapsed customers, learn how to build a formal win-back sequence to regain them.

Other Keep & Grow Guides

• •Build a Simple Review Request Workflow
• •Set Up Birthday/Anniversary Emails
• •Re-Engaging Inactive Customers
• •Create a Customer Onboarding Process
• •Simple Referral Offer Ideas
• •The Psychology of Repeat Business