Stop scheduled automations from processing the same data twice

Adds a safeguard so a scheduled workflow finishes one run before the next starts, keeping your data accurate.

How the work actually flows

It repeats. Repeats loops through remaining rows.

Pattern: Structured Loop (21)

flowchart TD trig(["scheduled run starts"]):::trigtime s0["process next row"]:::task s1[("mark row as processed")]:::store s2["check for remaining rows"]:::task trig --> s0 s0 --> s1 s1 --> s2 lp{"until all rows processed before next scheduled run"}:::gate s2 --> lp lp -. "loops through remaining rows" .-> s0 lp -->|"finished"| out out[/"rows processed once without overlap"/]:::out pay{{"reliable accurate scheduled processing"}}:::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 stepA record or sheetRepeat or finishResultPayoff
Build size
Standard

A mid-size build with several tools working together.

Business functions
Spreadsheet & Database Ops
Connects
Google Sheets

The problem it solves

When a scheduled process runs on a fixed timer but a single run occasionally takes longer than expected, two runs can end up overlapping. That leads to the same row getting processed twice, records getting overwritten, or duplicate emails going out.

Who it fits

A business that relies on scheduled data processing, like updating records or sending communications from a spreadsheet, and needs it to run reliably.

How it works

  1. The workflow starts on its usual schedule
  2. It processes rows in your Google Sheet one at a time
  3. A timeout setting ensures the run finishes before the next scheduled run can start
  4. Processed rows are marked in the sheet so they aren't picked up again
What you get

Runs that never double-process the same rows

Your scheduled workflow finishes cleanly every time, so your records stay accurate run after run.

What you get

Reliable, sequential processing of your spreadsheet data with no duplicate or overlapping runs.

What you need

A Google Sheets account.

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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