Automation library · Scheduling

Manage PTO requests and emoji approvals with Slack and Gemini

Started by an event in a connected app, and works across Google Calendar, Google Sheets and Slack. 18 steps, 4 branches: a working afternoon to understand properly.

Medium

18 stepsMedium: a working afternoon
4Branches: places the flow splits
0Loops or waits
3Services it connects to

The flow

Starts it 1Logic 7Service 10

The steps in the order they run, from what starts it.

  1. 1When App MentionedSlack triggerStarts it
  2. 2Route by Event TypeIfLogic
  3. 3Prepare Request ConfigSetLogic
  4. 4If Reaction AddedIfLogic
  5. 5Extract Dates with GeminiHttp RequestService
  6. 6Fetch Thread RepliesSlackService
  7. 7Parse Date OutputSetLogic
  8. 8Prepare Reaction ConfigSetLogic
  9. 9Check Calendar ConflictsGoogle CalendarService
  10. 10Check Reaction CriteriaIfLogic
  11. 11If Calendar ConflictIfLogic
  12. 12Lookup Request in SheetsGoogle SheetsService
  13. 13Warn Requester of ConflictSlackService
  14. 14Post Request to HR ChannelSlackService
  15. 15Block Time in CalendarGoogle CalendarService
  16. 16Log Pending Request in SheetsGoogle SheetsService
  17. 17Update Status in SheetsGoogle SheetsService
  18. 18Notify Employee of ApprovalSlackService

How it's built

Starts on
An event in a connected app
Steps
18, with 4 branches
Size
Medium: a working afternoon
Connects to
Google Calendar, Google Sheets, Slack
Model
None. This is plumbing, not judgement

Questions

What does it need to run?

An n8n account, plus your own Google Calendar, Google Sheets and Slack accounts. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an event in a connected app.

Does it use AI?

No. Every step is fixed logic or a call to a service, so it does the same thing every time.

How long does it take to set up?

Plan an afternoon. 18 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 18 steps before you point it at anything that matters.