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Subscription emails for flow completion Tableau Prep

Get an email the moment your Tableau Prep flow finishes, so you always know when your data is ready.

Part ofWhat's new in Tableau 2021.4Tableau Prep Builder tutorial Jan-2020
Watch on YouTube
  • Flow completion subscriptions arrived in Tableau Prep with the 21.4 release
  • You need an existing scheduled task on the flow before you can create a subscription, as the subscription attaches to that task
  • Set one up via the Subscriptions tab on the flow, choosing a frequency, recipients, subject and optional links to the published data source
  • If you pick a schedule that already has a subscription it won't create a duplicate, but a new schedule will show as a separate entry
  • The completion email includes the site and flow name plus clickable links straight to the data source

Tableau Prep can email you the moment a flow finishes running, so you know exactly when a data source is refreshed and ready to use. Introduced in 21.4, this saves you having to manually check whether a scheduled flow has completed.

Tim has a flow running on an hourly schedule and wants an email confirming each run completed, with a link straight to the refreshed data source.

The Breakdown
  1. What flow completion subscriptions do 0:00

    You get an email when a Prep flow finishes running, showing the site and flow name and clickable links straight to the published data source.

  2. Locate the flow and its schedule 0:32

    Find the flow via the Explore tab's filter dropdown, then check its Overview to confirm it has an existing scheduled task and see when it last ran.

  3. A schedule task is a prerequisite 1:00

    You must have a scheduled task on the flow before you can create a subscription, since the subscription attaches to that task and won't work without one.

  4. Create the subscription 1:21

    On the Subscriptions tab, click Subscribe, choose the frequency (it should match your existing schedule), add recipients, a name and subject, and optionally include a link to the published data source.

  5. Choosing recipients and links 2:00

    You can send to yourself, add other addresses, or just tick a box for 'me', and separately choose whether to include the data source name and a clickable link in the email.

  6. Avoiding duplicate subscriptions 2:40

    If you subscribe to a schedule that already has a subscription, Prep won't create a duplicate entry; only a genuinely new schedule shows up as a separate subscription in the list.

  7. Why this matters 3:22

    Use it to know precisely when a data refresh has completed so you can act straight away, for example republishing a workbook or picking up the next step in a process, rather than checking manually or guessing.

Worth Knowing
  • You can't create a subscription until the flow already has a scheduled task, since the subscription is tied to that task.
  • Selecting a frequency that already has a subscription won't create a second one; it silently reuses the existing subscription.
Use It When

Reach for this when a scheduled Prep flow feeds a data source or workbook that others depend on, and you need to know the instant it's refreshed so you can act, such as republishing a workbook or starting downstream work.

How this Rollup was made provenance & method

A Rollup is drafted by AI from the video's transcript, then reviewed and edited by Tim. Everything used to produce this one is listed below — the model, the exact prompt, and the source video — so the process is transparent and reproducible.

Transcription
On-device — NVIDIA Parakeet v3 for recent videos, OpenAI Whisper large-v3 for earlier ones. The transcript never leaves the machine or gets published.
Drafting
Claude Sonnet 5 in the cloud, from that transcript.
Prompt
The exact Rollup prompt (v2) — the full system prompt, unedited.
Source video
Watch on YouTube
Drafted
5 July 2026 at 09:38
Reviewed & edited
5 July 2026 at 09:41 · by Tim Ngwena

Model + prompt + video is everything you'd need to recreate a Rollup like this yourself. The one thing we don't share is the transcript.

Rights. The video and its transcript are the property of TN Media Ltd. Unauthorised use or download is prohibited. © TN Media Ltd.