n8n runtime billing for B2B equipment rental fleets

An excavator rented under an included-hour allowance may exceed it without a clear billing record. Charging a raw meter difference can also bill the renter for yard movement after return or for a corrupted sensor counter.

1. Read authenticated telematics samples and bind device IDs to the rental’s actual equipment record.
2. Retrieve signed rental terms from the authorized Salesforce workflow; have a supported Claude model propose clauses for human verification, replacing Claude 3.5 Sonnet.
3. In n8n, order samples by event time, check monotonic meters and bound usage to the custody interval.
4. Calculate overage using verified allowance and rate rules; hold rollover, reset and uncertain return-time cases.
5. Write a Salesforce billing review record or use a separately authorized invoicing integration. Salesforce CRM alone is not proof of an invoice/payment capability.

Telematics samples + Salesforce rental terms → n8n custody interval
→ meter integrity gate → deterministic overage
  valid → billing review
  reset/gap → fleet exception

This n8n Code-node fragment consumes a normalized, authenticated event from preceding integration steps. It demonstrates the decision boundary, not a complete API client. Fields are workflow-local mappings, not claimed vendor field names. Upstream credentials, schema validation, permissions, durable reservations and provider operations must be implemented separately. Numeric policy examples are illustrative, not Imperio service terms.

// n8n Code node: example verified rental terms, USD
const rental = $json;
const delta = rental.end_meter_hours - rental.start_meter_hours;
const valid = delta >= 0 && delta <= rental.custody_elapsed_hours &&
  rental.telemetry_complete && rental.terms_verified;
return [{ json: { rentalId: rental.salesforce_rental_id,
  reviewRequired: !valid,
  overageMinor: valid ? Math.round(Math.max(0, delta - rental.included_hours)
    * rental.hourly_overage_rate_minor) : null,
  meterEvidenceIds: rental.sample_ids } }];

Measure validated unbilled hours recovered and billing disputes per rental. Illustratively, 12 previously unbilled chargeable hours at an assumed $45/hour yields $540 billed value before tax and collection.

Manual meter photos remain useful evidence. Telematics improves timeliness but introduces sensor-quality risk; a fleet platform with native rental billing may be simpler than a custom workflow.

Have Imperio build a custody-aware runtime reconciliation pilot with reviewed Salesforce billing records.

What if the meter resets?

Hold the charge and reconcile with service records or reliable cumulative telemetry.

Can it automatically invoice through Salesforce CRM?

Only if an authorized configured billing integration supports that operation.

Are post-return yard movements chargeable?

Use the contract and verified custody interval, not raw device totals.

• Anthropic model lifecycle and retirement dates