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n8nlife

Compare a receipt against a booking amount before approval

At a glance

OpenAI vision extracts receipt totals and currency; deterministic checks compare them with expected booking values and route uncertain or mismatched documents to Slack. This workflow is listed under life, expenses, verification, approvals.

Agents / tools
n8n, OpenAI vision, Slack, Google Sheets

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Prompt excerpt

Configure OpenAI, Slack, and Google Sheets in the template. Send the webhook a receipt image URL, expected amount, currency, and booking ID. Test a matching receipt and a deliberately mismatched one. Inspect the verdict, extraction confidence, tolerance calculation, and review-channel alert before connecting real submissions.
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