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Daily newsletter service with Excel and Outlook

Started by a clock, and works across Excel and Outlook. It hands the judgement calls to OpenAI. 25 steps, 1 branch, 2 loops or waits: large, and worth reading before you trust it with anything live.

LargeCalls a model: OpenAI

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25 stepsLarge: read it before trusting it with anything live
1Branch: places the flow splits
2Loops or waits
2Services it connects to

The flow

Starts it 1Model 2Logic 19Service 3

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

  1. 1Schedule TriggerSchedule triggerStarts it
  2. 2OpenAI Chat ModelLm Chat Open AiModel
  3. 3Get SubscribersMicrosoft ExcelService
  4. 4Workflow SummarizerChain LlmModel
  5. 5Parse RowsSetLogic
  6. 6Collect FieldsSetLogic
  7. 7Get Unique CategoriesSetLogic
  8. 8MergeMergeLogic
  9. 9AggregateAggregateLogic
  10. 10Categories to ItemsSplit OutLogic
  11. 11For Each SubscriberSplit In BatchesLogic
  12. 12For Each CategorySplit In BatchesLogic
  13. 13Fetch Latest 10 per CategoryHttp RequestService
  14. 14Has New Workflows?IfLogic
  15. 15Get Relevant WorkflowsSetLogic
  16. 16Flatten WorkflowsSetLogic
  17. 17Workflows to ItemsSplit OutLogic
  18. 18Append CategorySetLogic
  19. 19Generate HTML TemplateHtmlLogic
  20. 20No Operation, do nothingNo OpLogic
  21. 21Workflow to ItemsSplit OutLogic
  22. 22Send Daily DigestMicrosoft OutlookService
  23. 23Remove Already SeenRemove DuplicatesLogic
  24. 24Combine WorkflowsAggregateLogic
  25. 25With User ReferenceSetLogic

How it's built

Starts on
A clock
Steps
25, with 1 branch, 2 loops or waits
Size
Large: read it before trusting it with anything live
Connects to
Excel, Outlook
Model
OpenAI

Questions

What does it need to run?

An n8n account, plus your own Excel and Outlook accounts, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on a clock.

Does it use AI?

Yes. It calls OpenAI. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Take your time. At 25 steps it is large: read it before trusting it with anything live.

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 25 steps before you point it at anything that matters.