Get a Slack alert when a task deadline passes in Google Sheets

Reads deadlines from your task spreadsheets and sends a Slack alert automatically when one is overdue.

How the work actually flows

It branches. Exactly one path is taken; runs once per each tracked spreadsheet.

Pattern: Multiple Instances with a priori Run-Time Knowledge (14) · Exclusive Choice (4)

flowchart TD trig(["regular scheduled deadline check"]):::trigtime s0[["check spreadsheet deadlines"]]:::mi s1["compare deadline to today"]:::task trig --> s0 s0 --> s1 gx{"× is deadline overdue"}:::gate s1 --> gx p00["send slack alert"]:::task gx -->|"deadline passed"| p00 p10["no action taken"]:::task gx -->|"still on time"| p10 p00 --> out p10 --> out out[/"slack alert for overdue tasks"/]:::out pay{{"no missed deadlines without manual checking"}}:::pay out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff
Starts itA stepRuns once per itemOne path onlyResultPayoff
Build size
Advanced

A larger build with multiple systems, AI reasoning, and custom rules.

Business functions
Messaging & NotificationsSpreadsheet & Database OpsFile & Cloud Storage
Connects
Google SheetsGoogle DriveSlack
Featured in

The problem it solves

Deadlines get buried in spreadsheets and nobody notices until a client asks why something is late. Chasing down overdue tasks across multiple sheets takes constant manual checking that's easy to forget.

Who it fits

A team or project manager who tracks tasks and deadlines in Google Sheets.

How it works

  1. You start a new project by duplicating the task spreadsheet template
  2. The new spreadsheet's link is saved in a master tracking sheet
  3. On a regular schedule, the system checks the deadline column in every tracked spreadsheet
  4. If a deadline has passed, a Slack message is sent to notify the team
What you get

Overdue tasks flagged the moment they slip

Your team gets a Slack message the instant a task deadline passes, so nothing slips through the cracks across all your active projects.

What you get

A Slack notification whenever a tracked task deadline has passed.

What you need

A Google Sheets account and a Slack workspace.

We can build this. But should you?

The hard question is not how to build it. It is whether this is the right thing to build first.

That is what a Fractional Chief AI Officer figures out with you, before anyone writes a line of code.

Let's Talk Strategy

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