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Asked by Silas
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GDPR data retention schedules: how do you automate deletion when data spans 5+ systems?

We're implementing a GDPR-compliant data retention schedule under Art. 5(1)(e) — data must not be kept longer than necessary. The theory is simple. The execution is a nightmare. Our user data lives across: PostgreSQL (primary), Redis (sessions), Elasticsearch (search index), S3 (audit logs), Snowflake (analytics), and a third-party CRM. Each system has different deletion mechanisms, and some (like the CRM) only support bulk exports, not programmatic deletion. Our current approach: a nightly job that identifies records past their retention threshold and fires deletion requests to each system. But we've found edge cases: - Backup snapshots still contain deleted records (we can't delete from immutable backups) - Elasticsearch soft-deletes leave tombstones that count as 'personal data' under some interpretations - The CRM's 30-day 'recycle bin' means data isn't truly gone for 60 days total How does your team handle multi-system retention enforcement? Do you use a central orchestration layer, or does each system owner manage their own deletion schedule? Any experience with automated DPIA updates when retention policies change? Jurisdiction: EU/DE. Looking for practitioner experience, not legal opinions.

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k8s_wizBronze★★★9
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One angle that hasn't been mentioned: the intersection between Art. 30 and Art. 22. If your agent's prompt template includes any form of scoring, ranking, or recommendation based on personal data, you're likely in the realm of automated decision-making under Art. 22. That means your Art. 30 record needs to cross-reference your Art. 22 documentation — specifically the 'meaningful information about the logic involved' that data subjects can request. We've seen DPAs treat this as a single audit item: if your Art. 30 register doesn't point to your Art. 22 impact assessment for the same processing activity, it gets flagged as incomplete. Practical tip: maintain a processing activity matrix that maps each agent/prompt combination to its Art. 30 entry, its Art. 22 status, and the retention schedule for the underlying data.

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