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Celebrate work anniversaries and birthdays

Work anniversaries and birthdays in Slack, what each person decides, and how administrators set it up.

Everyone using Shuffl

Read as MarkdownAll guides as textAgent documentation index

Have your agent do thisPaste the prompt into Claude Code, Cursor or another agent. It follows this guide over MCP and asks before it changes anything others will see.Show the prompt
Help me with "Celebrate work anniversaries and birthdays" in my Shuffl workspace.

1. Read the guide: https://shuffl-rebuild.vercel.app/docs/markdown/celebrations
2. Add Shuffl's MCP server: https://shuffl-rebuild.vercel.app/api/mcp
   Claude Code: claude mcp add --transport http shuffl https://shuffl-rebuild.vercel.app/api/mcp
   When the browser opens, choose my workspace and allow the access the guide needs.
3. Work through the steps in order: Your anniversary and birthday; For administrators. Do what you can over MCP and tell me which steps only I can do in the browser or in Slack.

Show me what you will change and who it affects, and wait for my yes before publishing, inviting or sending anything.

App links open your signed-in workspace. Check the selected workspace before making changes.

Your anniversary and birthday

  1. To add your birthday, open Celebrations from Home, or Me, and enter the month and day. Shuffl never imports a birthday and never asks for the year.
  2. To stop a celebration, turn it off there. Anything already scheduled for it is cancelled.

Shuffl celebrates two days: your work anniversary, counted from your start date in People, and your birthday, if you add it. Your workspace switches each one on separately.

On the day, Mello sends you a private note in Slack. Without a linked Slack account, you see it as a note in Shuffl instead. Coworkers who know you see your day in their Home feed with a Congratulate button that opens a Slack message to you.

Share your celebration?The person celebrating, privately · A few days before the date

ShufflAPP

Your 3-year work anniversary is coming up on 2026-10-02.Should Mello share it in #celebrations?
Share itKeep it private
🔒 Your age is never shared and no message carries the date. If you share it, your manager hears a week ahead. Either way, you get a note on the day.
Celebration postThe celebrations channel or the person’s team · On the day, if they said yes

ShufflAPP

Happy work anniversary, Jordan Lee! 3 years with us today. Thank you for everything you do.
Reply in this thread to add a note for Jordan Lee.
The Your celebrations page: a birthday card with month and day pickers, a card for the work anniversary, sharing choices for each, a Who sees what explanation and the notes Mello has sent.
Each person decides separately whether their birthday and their anniversary are shared.

Who sees what

Your workspace may also post in a Slack channel or message your teammates, but only if you say yes, separately for your anniversary and your birthday.

A week before your first shared day, Mello asks you in a Slack direct message: Share it or Keep it private. Either way, you still get your own note on the day.

You can change your answer any time in Slack, on Shuffl’s Home tab under Your celebrations, or on the web under Celebrations. Saying no cancels any shared message still waiting.

No celebration post or note carries the date or your age; only your manager’s heads-up names the day. A birthday has no year stored at all. An anniversary message can say how many years.

A channel post invites coworkers to reply in its thread to add a note for you.

When you share a day, your manager in People also hears about it a week ahead, so they can send you a note themselves. A day you keep private stays between you and Mello.

Sign a team card

When someone shares their anniversary or birthday, Mello opens a card a week before and asks their teammates and manager to sign it. Each person writes one note, and can change or remove it until the day.

The card is a surprise. The person can’t open it until it is given to them on the day, in a Slack message from Mello and under Your celebrations. A card nobody signed is never sent.

Cards waiting on your note are listed under Cards to sign on Your celebrations.

Sign the team cardThe person’s teammates, privately · A week before a shared celebration

ShufflAPP

🎉 Jordan Lee's 5-year work anniversary is on 2026-10-09.The team is signing a card for them. 3 people have signed their card so far.
Sign the card
🔒 Jordan Lee sees the card on the day. Until then it's a surprise.
Your team cardThe person celebrating, privately · On the day, if anyone signed

ShufflAPP

🎉 Your team signed a card for your 5-year work anniversary.Notes from Priya Shah, Marcus Webb and 2 others.
Open your card
A team card for a five-year work anniversary: a green card face reading 5 years, Kwame!, three coloured notes from teammates with their names, and an Add your note box below.
The team signs in secret. The person opens the card on the day.

For managers

A week before a report’s shared anniversary or birthday, Mello sends their manager a Slack direct message with the day and a note to start from. A first year and every fifth year are called out as milestones.

Mello never posts as you. Send the note yourself on the day, or write it now and use Slack’s Schedule message. Mello still sends its own note.

Nothing goes out for a day the person keeps private, or when People lists no manager for them. If their manager changes before the day, the old manager’s heads-up is not sent.

Manager heads-upThe person’s manager, privately · A week before a shared celebration

ShufflAPP

🎉 Jordan Lee's 5-year work anniversary is coming up on 2026-10-09.A note from you on the day means more than one from Mello. 5 years is a milestone worth marking.
Here's a start you can make your own:Happy 5-year work anniversary, Jordan! 5 years is a big one. Thank you for all of it.
Send it to Jordan Lee on the day, or write it now and use Slack's Schedule message. Jordan Lee chose to share this celebration, and Mello still sends its own note.

For administrators

  1. In Manage, open Celebrations. Upcoming shows the next 60 days and whether each person’s day is shared or private. Settings has one card for work anniversaries and one for birthdays. History lists every message sent or skipped.
  2. In a new workspace, pick a starter: Work anniversaries in a channel, Birthdays in a channel, Tell the team about anniversaries, or Private anniversary notes. It fills in the settings; nothing is turned on yet.
  3. Choose who hears about it: a private note to the person only, also a post in a Slack channel you choose, or also a message to each of the person’s teammates.
  4. Write the message. Use {name} and {years} for anniversaries, and {name} for birthdays.
  5. Choose the send time. Each message goes out at that time in the person’s own time zone.
  6. Preview the exact message, then choose Turn on. Save without turning on keeps your edits for later.
The Celebrations page in Manage with the Upcoming tab: the next 60 days of anniversaries and birthdays, each row naming the person, the day, how many years and whether it is shared or private.
Upcoming shows what will be celebrated and how, so nothing is a surprise.
Celebration settings in Manage: one card for work anniversaries and one for birthdays, each with who hears about it, the send time, an optional channel, the message with placeholders and a Preview before turning it on.
Each celebration has its own audience, time and message. You cannot turn one on without previewing it.

When messages are sent

Each message is sent at most once, even if a send is retried. A message that has not gone out by the end of the person’s day is skipped, never sent late.

Turning a celebration off, a person opting out, saying no to sharing or employment ending cancels what was scheduled.

A rehired person’s anniversary counts from their new start date. A February 29 anniversary or birthday is celebrated on February 28 in other years.