Product Sunset Plan: 6-Month Roadmap, Owners and Checklist

9 min read ยท 2026-10-25

A product sunset plan is the schedule and set of tasks you use to retire a product or feature. It covers who decides, how customers hear about it, where they move to, what happens to their data and contracts, and the date the product stops working. A good plan protects revenue and trust while you free up the team and budget the product was using.

The roadmap below runs over six months in six phases, from the decision memo to the post-shutdown review. Each phase has an owner and a milestone you can check. You will also find a filled-in example, a stakeholder map, the metrics to watch during migration and how to present the plan to leadership. Shorten the phases for a small internal tool. Stretch them for a product with enterprise contracts or integrations that other systems depend on.

The roadmap at a glance

Goal: The product is switched off on the announced date, active customers have moved to a supported option, data is handled as promised, and the team and budget are reassigned. Duration: 6 months

  1. Decide and get sign-off (Weeks 1-3)

    Make a clear, documented decision that leadership supports.

    • Pull usage, revenue, support load and maintenance effort for the product over the last twelve months.
    • List the options: keep as is, keep with no new features, merge into another product, or retire.
    • Write a one-page decision memo with the reason, the customers affected, the replacement path and the target shutdown date.
    • Get sign-off from the product leader, engineering, finance and the customer-facing heads.

    Milestone: A signed decision memo with a target shutdown date and a named sunset owner.

  2. Map impact and dependencies (Weeks 3-6)

    Know exactly who and what breaks when the product goes away.

    • Segment users by value and usage: large contracts, active users, light users and inactive accounts.
    • Ask legal and finance to review contracts for notice terms, renewal dates and refund questions.
    • List technical dependencies: integrations, APIs, other products that call this one, and shared databases.
    • Decide what happens to customer data: export format, retention period and deletion date, checked with your privacy team.
    • Pick the migration path for each segment: a replacement product, a partner tool or a data export.

    Milestone: An impact register listing every segment, contract, dependency and data decision, each with an owner.

  3. Prepare the move (Weeks 5-9)

    Have everything ready before any customer hears the news.

    • Build or test the export tool and the migration path with two or three friendly customers.
    • Write the announcement email, in-app banner, help center article and FAQ.
    • Brief support, sales and customer success, and give them a script and an escalation route.
    • Stop new signups or sales of the product and remove it from pricing pages and sales decks.

    Milestone: Migration path tested end to end, all messages approved, and customer-facing teams trained.

  4. Announce (Weeks 9-11)

    Tell every affected customer, in the right order and through the right channel.

    • Have account managers call your largest customers before the public message goes out.
    • Send the announcement email and turn on the in-app banner with the shutdown date and next steps.
    • Publish the help center article and the FAQ the same day.
    • Track replies and tickets daily, and update the FAQ with new questions.

    Milestone: Every active account has received the notice, and every top account has had a personal call.

  5. Migrate and support (Weeks 11-22)

    Move as many active customers as possible before the shutdown date.

    • Run weekly migration reports by segment and follow up with accounts that have not started.
    • Hold office hours or webinars on the replacement product.
    • Send reminders at regular points before shutdown, for example 60, 30, 14 and 3 days out.
    • Put the product in read-only mode near the end so data can be exported but not changed.

    Milestone: Migration target reached for each segment, and every remaining account contacted at least twice.

  6. Shut down and close out (Weeks 23-26)

    Switch the product off cleanly and wrap up the work.

    • Run the shutdown runbook: disable logins, redirect URLs to a status page, turn off integrations.
    • Delete or archive data on the dates you announced, and keep a record of what was done.
    • Decommission infrastructure and cancel licenses and vendor contracts tied to the product.
    • Hold a retrospective and share the results and the savings with leadership.

    Milestone: Product offline on the announced date, data handled as promised, infrastructure shut down and retrospective shared.

When to sunset a product

Most sunset decisions come from the same few signals: usage that keeps falling, a product that no longer fits the strategy, maintenance or security costs that keep rising, or a newer product that does the same job better. One signal alone is rarely enough. Put them side by side in the decision memo so leadership sees the full picture.

Look at the options before you decide to retire. Some products can stay in maintenance mode with no new features. Others can merge into a newer product. Retiring is the right call when keeping the product costs more in money, people or risk than the value it brings to the customers who still use it.

Example: a sunset plan for a legacy reporting add-on

Picture a software company with an old reporting add-on used by a few hundred accounts. A newer analytics module covers the same reports. The add-on runs on an outdated framework that the platform team wants to remove.

This plan gives the largest customers extra time and a personal call. The light users get an email, a banner and a clear export. The same message reaches everyone, but each group gets the level of help that matches its value and risk.

  • Weeks 1-3 (owner: product manager): decision memo signed by the VP of Product, the CFO and the head of customer success. Milestone: shutdown date set.
  • Weeks 3-6 (owners: product manager, legal, data engineer): accounts split into enterprise, active and inactive, contracts reviewed, export format chosen. Milestone: impact register complete.
  • Weeks 5-9 (owners: engineering lead, support lead): CSV export and report templates in the new module tested with three customers, support script ready. Milestone: test customers migrated without help.
  • Weeks 9-11 (owners: customer success, product marketing): calls to enterprise accounts, then email, banner and help center article. Milestone: all active accounts notified.
  • Weeks 11-22 (owner: customer success lead): weekly migration report, two webinars, reminders, read-only mode in the last two weeks. Milestone: segment targets met.
  • Weeks 23-26 (owner: engineering lead): shutdown runbook, data deleted on schedule, framework removed. Milestone: retrospective shared with leadership.

Who owns what

A sunset fails when everyone assumes someone else is handling customers, data or contracts. Name one sunset owner, usually the product manager, who holds the plan and the date. Then give each workstream its own owner.

Write these names on the first page of the plan and in your RACI. The sunset owner chairs a short weekly meeting with all of them until the close-out.

  • Product manager: decision memo, impact register, timeline and weekly status.
  • Engineering lead: export tool, read-only mode, shutdown runbook and decommissioning.
  • Customer success and account managers: calls to key accounts, migration follow-up and escalations.
  • Support lead: scripts, help center content and ticket tracking.
  • Product marketing: announcement email, banner, FAQ and updates to the website and sales materials.
  • Legal, privacy and finance: contract notices, data retention and deletion, refunds and revenue forecast changes.

How to tell customers

Order matters. Your largest and most dependent customers should hear it from a person, before any email or public post. Internal teams should hear it before customers, so they are not caught off guard on a support call. Then send the written notice to everyone else on the same day across email, in-app message and help center.

Every message should answer five questions: what is changing, when, why, what the customer should do next, and where to get help. Keep the reason short and honest. Give one clear next step, such as a link to the export tool or the replacement product, not a list of options.

Repeat the date often. Many customers will ignore the first email. Plan reminders, and make the banner impossible to miss in the last weeks.

Metrics to track during the sunset

Report these in a weekly table by segment. The trend matters more than any single week: a migration rate that stalls halfway tells you to change your outreach before the deadline, not after.

Set the target for each metric in the decision memo, so the team knows what good looks like before the work starts.

  • Migration rate: share of active accounts that have moved to the replacement or exported their data, by segment.
  • Revenue retained: revenue from affected accounts that stays with the company after shutdown.
  • Support tickets: volume and top topics about the sunset, week by week.
  • Accounts not reached: active accounts that have not opened a message or answered a call.
  • Savings: infrastructure, license and team time freed once the product is off.

How to present the plan to leadership

Leadership wants three things: why now, what it costs, and what could go wrong. Put the decision memo summary on one slide: the reason, the customers affected, the replacement path, the shutdown date and the expected savings. Add a second slide with the six phases on a timeline and the owner of each.

Leave out the full task list and the email drafts. Instead, show the two or three biggest risks with a fallback for each, such as a large customer that needs more time, or an integration nobody documented. During the migration phase, send a short weekly update with the migration rate by segment and any decision you need from them.

Product sunset vs end of life vs deprecation

These terms are often used as if they meant the same thing. In general use, deprecation means a feature or API is still available but no longer recommended, and will be removed later. End of life usually means the product is no longer sold or supported, even if some copies keep running. Sunset usually means the full process of phasing the product out until it is switched off.

Your company may use these words differently, so define them in the plan. Customers need to know exactly what stops on which date: sales, updates, support, access or data.

Common mistakes to avoid

  • Announcing before the migration path works creates panic and angry tickets, so test the export and replacement with real customers first.
  • Letting large customers learn about it from a mass email damages trust, so have their account manager call them before the public notice.
  • Forgetting hidden dependencies breaks other products on shutdown day, so map integrations and API consumers during the impact phase.
  • Leaving data handling vague invites complaints and compliance trouble, so agree on export, retention and deletion dates with your privacy team and publish them.
  • Moving the shutdown date more than once teaches customers to ignore your notices, so set a realistic date and hold it unless something serious happens.
  • Keeping the product on sale during the sunset brings in new customers you will have to move, so stop new sales before you announce.

Frequently asked questions

What should a product sunset plan include?

It should include the decision and its reason, the customers and systems affected, the migration path, the communication schedule, data and contract decisions, the shutdown runbook and an owner for each part. Add the metrics you will track and the date of each milestone.

How much notice should you give before sunsetting a product?

It depends on how hard it is for customers to move and what your contracts say. Simple tools may need a few weeks, while products with integrations or enterprise contracts often need several months. Check your contract terms with legal before you set the date.

How do you announce a product sunset to customers?

Call your key accounts first, then send one clear message to everyone else by email, in-app banner and help center article. Explain what is changing, when, why, what to do next and where to get help. Send reminders before the shutdown date.

What happens to customer data when a product is retired?

Most companies give customers a way to export their data, then keep it for a set period before deleting it. Decide the export format, retention period and deletion date with your privacy or legal team and state them in every message.

Who should own a product sunset?

Usually the product manager owns the plan and the date. Engineering, customer success, support, marketing, legal and finance each own a workstream. One owner keeps decisions fast and the dates consistent.

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