European SaaS Expired Session Cleanup: Idempotent Python Drains Rate-Limited Wor

<p>When a customer-support system retries outbound webhooks, the cleanup job is easy to underestimate. A nightly delete of old delivery records may fit in one request today and

<p>Short answer: use a scheduled cleanup endpoint when one indexed, bounded pass can finish predictably; use a queue when cleanup must be divided into independently retriable

<p>Short answer: put each user reminder on a queue, make the consumer idempotent, retry transient delivery failures with backoff, and move exhausted work to a dead-letter queue