How to Track Which Customers Haven’t Heard From You in 90 Days

The customer you meant to contact last month

A customer was happy after the last job, order, or appointment. The conversation ended well. The owner thought, “I should check in with them later.” Then the week filled up, new requests arrived, and the customer’s name slowly moved out of sight.

Ninety days later, the owner sees the name again and realizes there has been no follow-up. Not because the customer was unimportant. Not because the owner did not care. The business simply had no easy way to see who had gone quiet.

A simple 90-day tracking routine helps turn “I should remember” into a visible weekly check.

Define what counts as contact

Before building the view, decide what “heard from you” means.

For a small business, contact might include:

• a personal email
• a phone call
• a text message
• a scheduled check-in
• a service reminder
• a useful update related to their past purchase or request
• a reply to a customer’s question

A mass newsletter may or may not count, depending on the business. If the goal is relationship follow-up, a personal or relevant contact may be more useful than a general broadcast.

The definition should be simple enough that anyone using the system can apply it the same way.

Keep the CRM fields minimal

This workflow does not need a complicated setup.

A small business can start with a few fields:

• customer name
• email or phone
• customer group
• last personal contact date
• last purchase or service date
• follow-up status
• next follow-up date
• notes

The key field is “last personal contact date.” Without that field, the business may know when the customer bought something but not when the business last reached out.

For some businesses, purchase date and contact date are the same. For others, they are different. Keeping both can prevent confusion.

Choose customer groups

Customer groups make the 90-day view easier to act on.

Possible groups include:

• recent customers
• repeat customers
• past high-value customers
• seasonal customers
• leads who asked for information
• customers who need periodic service
• inactive customers

The group should help the owner decide the follow-up tone.

For example, a repeat customer may get a warm check-in. A seasonal customer may get a reminder before their usual busy period. A lead may need a lighter message that does not assume they are ready to buy.

Avoid creating too many groups at first. Three to six useful groups may be easier to maintain than a long tag list.

Build a 90-day view

The 90-day view is the heart of the system.

It should show customers where:

• last personal contact date is more than 90 days ago
• follow-up status is not “done”
• customer is still relevant to contact
• contact information exists
• customer has not opted out of communication

The exact CRM steps depend on the tool, but the logic is simple:

“Show me customers who have not received a personal follow-up in 90 days.”

If the CRM cannot create this view easily, a spreadsheet can do the same with filters and dates.

Use clear follow-up statuses

A 90-day list becomes messy if every customer stays on it forever.

Use simple statuses such as:

• needs follow-up
• scheduled
• contacted
• waiting for reply
• not relevant now
• do not contact

The “do not contact” status matters. Some customers should not be included in routine outreach because of opt-out, prior request, or business judgment.

The status should tell the owner what to do next, not just describe the past.

Decide what happens after contact

After a customer is contacted, update the record immediately.

At minimum, update:

• last personal contact date
• follow-up status
• short note
• next follow-up date, if needed

Example only:

“May 6 — Sent maintenance reminder. Waiting for reply. Check again in two weeks.”

This note does not need to be long. It only needs to stop the owner from wondering later, “Did I already contact this person?”

Create a weekly review routine

A 90-day view works best when reviewed on a schedule.

A simple weekly routine could be:

1. Open the 90-day view every Monday morning.
2. Pick a manageable number of customers.
3. Check recent notes before contacting anyone.
4. Send or schedule personal follow-ups.
5. Update status immediately.
6. Move customers out of the list when done.
7. Leave unclear cases for manual review.

The number of customers should match the business’s capacity. A list of 80 names can create avoidance. A list of five to ten follow-ups may be easier to complete.

Write follow-ups that match the relationship

The 90-day system should not create robotic messages.

A basic message can be short:

“Hi [Name], I was reviewing past customer notes and wanted to check in. Is there anything you need help with right now?”

For a service business:

“Hi [Name], just checking whether everything is still working well after your last service. No rush — I wanted to make sure you had an easy way to reach us if needed.”

For a seasonal customer:

“Hi [Name], this is a quick note before the busy season. If you are planning to schedule again, feel free to reply and I can help you look at options.”

These are examples only. The business should adjust tone based on the actual relationship and communication permissions.

Avoid making the system too heavy

The biggest mistake is turning a simple follow-up routine into a full CRM redesign.

Do not start by adding dozens of fields, tags, automations, and scoring rules. Start with the question:

“Who has not heard from us in 90 days?”

Then add only the fields needed to answer and act on that question.

A small business needs a system that survives busy weeks. If updating the CRM takes longer than sending the follow-up, the routine may fade.

Handle customers who should not be contacted

Not every quiet customer belongs in the 90-day outreach list.

Remove or mark customers who:

• asked not to be contacted
• are no longer relevant
• had a sensitive situation
• already have an active open issue
• should only receive certain types of communication
• require owner review before outreach

This protects the business from sending careless messages.

A useful status is “manual review.” It keeps the customer visible without pushing them into routine outreach.

A simple operating rule

The 90-day workflow can be summarized in one rule:

Every week, check who has not received a personal follow-up in 90 days, choose a small batch, contact them thoughtfully, and update the record the same day.

That is enough for many small businesses. The system does not need to be flashy. It needs to show today’s follow-up work before the relationship quietly goes cold.