Generate personalized follow-ups for failed payments

Whenever a payment fails in Trolley, automatically prompt Claude to generate a personalized email message for billing recovery.

Try:

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How Knit builds this workflow

The Agent researches both APIs and wires the trigger on one side to the action on the other — no pre-built connector required. Here is the vocabulary it has to work with.

Trolley Explore Trolley →

Triggers

New customer

Fires when a new customer is created in Trolley.

Subscription canceled

Fires when a subscription is canceled in Trolley.

New invoice generated

Fires when a new invoice is generated in Trolley.

Payment failed

Fires when a payment attempt fails in Trolley.

Actions

Create customer

Creates a new customer in Trolley.

Create subscription

Creates a new subscription in Trolley.

Cancel subscription

Cancels an existing subscription in Trolley.

Update customer

Updates a customer's billing details in Trolley.

Claude Explore Claude →

Triggers

New result returned

Fires when Claude returns a completion, prediction or other result.

Model run failed

Fires when a request to Claude errors or times out.

Fine-tune job completed

Fires when a fine-tuning job in Claude finishes.

Actions

Generate a completion

Sends a prompt to Claude and returns the model's response.

Run a model on an input

Sends text, an image or other data to Claude and returns the model's output.

Classify or extract data

Uses Claude to classify or extract structured data from text or images.

Classify churn feedback when subscriptions are canceled When a subscription is canceled in Trolley, automatically pass the cancellation reason to Claude to classify feedback and identify retention trends. See details

Update customer records when model fine-tuning completes When a fine-tune job completes in Claude, automatically update customer details in Trolley to grant access to custom model tier features. See details

See all Trolley + Claude integrations → · Browse the full workflow library →

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FAQ

Common questions

Can Knit build “Generate personalized follow-ups for failed payments” between Trolley and Claude?

Yes — describe it in the box above and Knit's Integrations Agent researches Trolley and Claude's public API docs (or your own uploaded docs) and builds a working workflow, whether or not either app already has a pre-built connector.

How long does it take to build?

Minutes to a first working version, not weeks — you test it against real data before it goes anywhere near production.

How can subscription platforms benefit from AI model integrations?

Connecting Claude to Trolley enables automatic churn sentiment classification, personalized invoice summaries, and AI-generated customer outreach.

Can model execution errors update customer records in Trolley?

Yes, if a model run fails in Claude, you can automatically update customer notes or metadata in Trolley to alert support teams.