---
title: "Client anniversary messages: what to write (32 notes)"
description: "32 short client anniversary messages for the year a customer signed and for a client contact's own work anniversary, grouped by year and situation."
canonical: https://trysincerely.com/messages/client-anniversary-message
last_updated: 2026-10-11
---
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# Client anniversary messages: what to write (32 notes)

> 32 short client anniversary messages for the year a customer signed and for a client contact's own work anniversary, grouped by year and situation.

Source: https://trysincerely.com/messages/client-anniversary-message

A client anniversary message says how long you have worked together and names one thing that happened in that time. "Three years since your first shipment, and you still send us the best bug reports" is a complete card. Leave out the renewal, the new features, and any request. A client contact's own work anniversary is a separate occasion. Congratulate them on their years at their company, which have nothing to do with you. Below are 32 short notes for both occasions, grouped by year and situation. Each one fits the three-line writing area of a handwritten 4x6 postcard.

![A small sage green gift box tied with a cream ribbon beside a folded cream card on an oak reception counter, with warehouse shelves of boxes blurred behind.](https://trysincerely.com/images/messages/client-anniversary-message.webp)

*A client anniversary message counts the years and names one thing from them, so the card could only have gone to this client.*

## Two different anniversaries

Most searches for "client anniversary message" mean one of two dates, and the note changes with the date.

| Anniversary                    | The date                                                       | What the note names                   | Who signs                                                      |
| ------------------------------ | -------------------------------------------------------------- | ------------------------------------- | -------------------------------------------------------------- |
| The account's anniversary      | The day they became a customer: a signed contract or a go-live | Something you did together since then | The person who works with them most, often the account manager |
| The contact's work anniversary | Their start date at their company or in their role             | Something they built or changed there | Whoever knows them best on your side                           |

Pick one date for the account's anniversary and keep it every year. A go-live date is often better than a signature date. It marks the day the client's team started relying on you, and it is less likely to sit in the same week as a renewal invoice.

## How to write one that does not read as a form letter

Count the years, then add one detail from them. The detail does the work. "Happy anniversary from all of us" could go to every customer in your CRM, and the client can tell.

For a first year, the detail is usually the setup: the migration weekend, the first report their boss saw. By year five, pick something that changed, such as a team that grew, a person who moved on, or a problem you no longer talk about. Ten years in, the client has outlasted most of your staff. Say so.

Keep the anniversary away from the renewal. Annual contracts often renew on the date they started, so the card and the quote can land in the same week. If they do, the card looks like part of the sales process. Mail the card on the go-live date instead, or wait until the renewal has closed and send a [renewal thank-you note](https://trysincerely.com/messages/customer-renewal-thank-you-note). And if the year held a failure you never properly owned, write the [apology letter](https://trysincerely.com/messages/customer-apology-letter) before you write the anniversary card.

A work anniversary note is about the person. Do not use it to mention your product, or to remind them how long they have been your customer. If you learned the date from their public profile, that is fine to use.

Most anniversaries need only a card. A fifth or tenth year with a large account may justify more, and the [guide to sending gifts to customers](https://trysincerely.com/guides/how-to-send-gifts-to-customers) covers what to choose and what to write with it.

## How the fields work

Fields are written the way the Sincerely studio writes them. `{{first_name|there}}` prints the first name, or "there" when the record has none. `{{company}}` prints the account name and needs no fallback. A field that starts with `custom.` reads a column your team added. `{{custom.customer_since|day one}}` might print "2021", or "day one" when the cell is blank, so each fallback has to read naturally in the sentence. The events and names in the examples are invented.

## The first year as a customer

- Hi `{{first_name|there}}`, a year ago this week your team went live on a Sunday night so the warehouse would not notice. It didn't. Happy first anniversary.
- `{{first_name|Hello}}`, one year since the migration weekend, the pizza, and the 4 a.m. data check. I'd do it again with your team.
- Hi `{{first_name|there}}`, twelve months ago you were our newest customer in Ohio. Now three other Ohio clinics call you for advice about us.
- `{{first_name|Hello}}`, one year with `{{company}}`. The first report your CFO saw from us still hangs on my wall, typo and all.

## Two to four years

- Hi `{{first_name|there}}`, three years since the first pallet left your Tulsa dock on our software. You still file the clearest bug reports we get.
- `{{first_name|Hello}}`, year two began the week you hired a fourth planner. There are nine now. Congratulations on building that team.
- Hi `{{first_name|there}}`, since `{{custom.customer_since|day one}}` you've reported to three different bosses, and none of them lowered your standards.
- `{{first_name|Hello}}`, four years ago you asked whether we could move refrigerated loads. Nobody here knew. Now it's a third of your volume.

## Five years or more

- Hi `{{first_name|there}}`, five years. When we started, your team fit at one table. I saw the photo from the Denver offsite. You need a bigger table.
- `{{first_name|Hello}}`, `{{company}}` has worked with us since `{{custom.customer_since|before I joined}}`. People here still quote your 2022 feedback.
- Hi `{{first_name|there}}`, half a decade of Tuesday syncs. I've never once dreaded one. Happy anniversary to you and the team.
- `{{first_name|Hello}}`, seven years ago we were a vendor you were testing. I hope we're now the one you don't have to think about.

## Ten years or more

- Hi `{{first_name|there}}`, ten years. Our company had eleven people when you signed. Most of them have moved on, and you're still here keeping us honest.
- `{{first_name|Hello}}`, a decade together. You've seen four versions of our product and liked about two and a half of them. Thank you for the candor.
- Hi `{{first_name|there}}`, you were customer number 37. We have a few thousand now, and you're still the one new hires hear about first.

## An anniversary after a rough stretch

- `{{first_name|Hello}}`, two years together, and this one had the outage in it. You stayed and told us exactly what to fix. Happy anniversary.
- Hi `{{first_name|there}}`, our third year with you was not our smoothest. I wanted to mark the date anyway, and say we noticed your patience.
- `{{first_name|Hello}}`, your team had a hard year, and we only saw a small part of it. I hope year four is lighter for all of you.

## To the person who brought you in

- Hi `{{first_name|there}}`, three years ago you argued for us in a meeting I wasn't in. I still think about that. Happy anniversary.
- `{{first_name|Hello}}`, you ran the pilot, wrote the business case, and trained the first users. The anniversary is yours more than ours.
- Hi `{{first_name|there}}`, you picked us when we had two references and no logo wall. Five years on, I hope it still looks like a good call.

## A contact's first year in a new job

- `{{first_name|Hello}}`, a year ago you started at `{{company}}`, and by June every purchase order reached us with the right codes. Happy work anniversary.
- Hi `{{first_name|there}}`, one year in the new role. I remember your first call with us, when you asked which reports nobody read. Good question then and now.
- `{{first_name|Hello}}`, your first year at `{{company}}` is done. We still use the vendor checklist you sent us in your second week. Congratulations.

## A milestone year at their company

- Hi `{{first_name|there}}`, congratulations on `{{custom.tenure|another year}}` at `{{company}}`. They're lucky to have you.
- `{{first_name|Hello}}`, ten years at one company is rare now. You've stayed long enough to fix the things you complained about in year one. Congratulations.
- Hi `{{first_name|there}}`, twenty years at the same plant. I hope someone there brings a cake big enough for all three shifts.
- `{{first_name|Hello}}`, five years at `{{company}}` this week. Whoever hired you in 2021 made a very good decision. Happy work anniversary.

## A contact who has been there longer than anyone

- Hi `{{first_name|there}}`, you've outlasted three of our account managers and trained every one of them. Happy work anniversary from the latest one.
- `{{first_name|Hello}}`, fifteen years and you still know where every file lives. Congratulations, and thank you for sharing the map with us.

## Two-line versions

- `{{first_name|Hello}}`, four years together this month. Still glad it's you.
- Hi `{{first_name|there}}`, eight years at the same desk this week. Happy work anniversary.

## How much fits on a handwritten card

The default writing area on a handwritten 4x6 postcard in Sincerely is about three lines of 61 to 65 characters, so each note above runs two or three sentences. Every one fits that area with its fields at their longest. A postcard body never goes past 240 characters, even when you enlarge the area. If you need more room, for a tenth-year note from your chief executive, send a handwritten letter in a hand-addressed envelope.

## Sending anniversary notes through Sincerely

Sincerely has no trigger that fires on a customer anniversary or a work anniversary, so you bring the dates. Once a month, export the accounts whose anniversary falls in the next few weeks. Upload them as a [CSV](https://trysincerely.com/integrations/csv), with the start year in its own column for `{{custom.customer_since|day one}}`. Then launch a campaign, choose Keep in touch as its writing, and give it an occasion such as "your fifth year with us." Keep in touch is the setting for mail that asks for nothing. The occasion holds up to 80 characters, and the writer reads it for every card.

Keep in touch copy thanks, congratulates, or sends good wishes. It carries no offer and no call to action. The writer sees how many deals the account has won and when the first and the latest closed, never the amounts. It also reads up to three notes your team left on the contact. When the account has a renewal date on file, the writer is told to leave renewals, contracts, and pricing out. Copy approval for a campaign starts on "review each piece," so a person reads every card before it prints.

Each card counts toward the default cap of three pieces per person in 30 days, the same as every other piece your company mails that person. Handwritten cards are genuinely written by hand in black or blue ballpoint. For the moments around an anniversary, see the [new customer thank-you notes](https://trysincerely.com/messages/new-customer-thank-you-note) and the [customer marketing playbook](https://trysincerely.com/playbooks/customer-marketing).

## Related questions

- [Direct mail for customer marketing](https://trysincerely.com/playbooks/customer-marketing): Use physical mail for onboarding, champion thanks, advocacy, expansion, and renewal conversations, with careful account ownership and honest measurement.
- [What to write in a customer renewal thank-you note](https://trysincerely.com/messages/customer-renewal-thank-you-note): 30 renewal thank-you notes for B2B customers, from a first renewal to a renewal after a hard year, each short enough to write by hand.
- [What to write in a thank-you note to a new customer](https://trysincerely.com/messages/new-customer-thank-you-note): 30 thank-you notes for a B2B customer who just signed, grouped by deal size and by who signed, each short enough to write by hand on a postcard.
- [How to send gifts to customers](https://trysincerely.com/guides/how-to-send-gifts-to-customers): A good customer gift marks something real, reaches the person who did the work, and asks for nothing in return.
- [34 holiday card messages for clients](https://trysincerely.com/messages/holiday-card-messages-for-clients): 34 holiday card messages for B2B clients, grouped by relationship, each about the year you actually had and short enough to write by hand.

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Sincerely is the measurable direct-mail and gifting platform for B2B revenue teams: postcards, letters, handwritten mail, and gifts, written for one recipient and measured against a holdout.

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