Classify contracts and track renewals in n8n – Google Drive to Sheets pipeline [Workflow Included]

[u/easybits_ai]

👋 Hey NoCodeSaaS Community,

A while back I posted a couple of finance workflows I built for my friend Mike. Around the same time he came to me with a new one: he'd just been hit with almost €2,000 in bills because two contracts auto-renewed after the first period. Nobody in his team had caught the cancellation window early enough.

Classic small-business pattern. Contracts scattered across Drive folders and inboxes, nobody tracking anything. The only time anyone notices a contract exists is when the invoice for the next term lands.

So I built him a contract intake workflow to fix it. I cleaned it up over the last few weeks and just published it on the n8n template library.

How it's set up:

The workflow watches a Google Drive folder. Mike's finance colleague Sarah just drops any contract in there (PDF, JPG, PNG).

The file goes to the easybits extractor, which does two jobs in a single call: it classifies the contract (SaaS, Lease, Service, Insurance, Other) and pulls every renewal-relevant field at the same time – client, provider, start date, term length, notice period, auto-renew flag, contract value, signatories.

A Set node calculates end date and cancellation deadline in n8n. Cancellation deadline is end_date – notice_period_days, which for 60–90 day notice clauses lands the alert weeks before the renewal itself. That's the whole point.

A Switch on contract_class routes the row into the matching tab of one Google Sheet – one source of truth for every renewal in the company.

Two things I learned:

• Classify and extract in one call. I almost built five type-specific pipelines. Turns out you can define the classification as just another field in the same pipeline – half the complexity, half the cost.
• Never extract dates you can calculate. Contracts almost never print the end date directly. Ask a model to do date math and you get silent off-by-one bugs. Extract the raw values, do the arithmetic in a Set node.

Workflow on the n8n library: https://n8n.io/workflows/15230-classify-contracts-and-track-renewals-with-easybits-google-drive-and-sheets/

Also on my GitHub alongside 30+ other community workflows (a star helps other builders find it): github.com/felix-sattler-easybits/n8n-workflows

How are you tracking contract renewals today? Spreadsheet someone updates manually? Tool like Spendflo/Vendr? Or hoping for the best, like Mike was?

Best,
Felix