Automation library · Data collection

Clean and deduplicate supplier master data with Google Sheets

Started by a clock, and works across Gmail and Google Sheets. It hands the judgement calls to Groq. 16 steps, 2 branches: a working afternoon to understand properly.

MediumCalls a model: Groq

Download free
16 stepsMedium: a working afternoon
2Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 1Model 2Logic 8Service 5

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

  1. 1Scheduled Master Data ScanSchedule triggerStarts it
  2. 2LLM Processing EngineLm Chat GroqModel
  3. 3Fetch Supplier Master DataGoogle SheetsService
  4. 4Fetch Item Master DataGoogle SheetsService
  5. 5AI Merge Decision AnalyzerAgentModel
  6. 6Consolidate Master Data SourcesMergeLogic
  7. 7Prepare Auto-Merge RecordSetLogic
  8. 8Normalize Master Data RecordsSetLogic
  9. 9Write Merge Audit LogGoogle SheetsService
  10. 10Remove Exact Duplicate RecordsRemove DuplicatesLogic
  11. 11Generate Supplier Status MappingCodeLogic
  12. 12Identify Supplier RecordsIfLogic
  13. 13Update Supplier Master RepositoryGoogle SheetsService
  14. 14Supplier Duplicate Detection EngineCodeLogic
  15. 15Send Deduplication AlertGmailService
  16. 16Evaluate Duplicate Confidence ScoreIfLogic

How it's built

Starts on
A clock
Steps
16, with 2 branches
Size
Medium: a working afternoon
Connects to
Gmail, Google Sheets
Model
Groq

Questions

What does it need to run?

An n8n account, plus your own Gmail and Google Sheets accounts, and a key for Groq. 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 Groq. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 16 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 16 steps before you point it at anything that matters.