DPDP Rules for Purchase History Data
Liability Check
Your customer's purchase history data is no longer just a sales metric. Under DPDP, it's personal data requiring a lawful basis for every processing activity. Fail to comply, and your e-commerce platform could face penalties up to ₹250 Crore.
Why DPDP Rules for Purchase History Data is at Risk
From a customer's first cart on Myntra to their loyalty points at Big Bazaar, every detail is **personal data**. DPDP mandates you have a **specific, lawful purpose** for collecting, storing, and analyzing this data. Simply 'for analytics' isn't enough; you must clearly state *how* it benefits the customer or is legally required. Indefinite retention of purchase records, common practice for many Indian e-commerce firms aiming for lifetime value, is now a high-risk activity without strict **data retention policies** and explicit **consent** for extended periods. The Data Protection Board will demand robust proof of your **purpose limitation** and **data minimisation** efforts.
Common Violations
- 1.Collecting extensive purchase history (e.g., browsing patterns, wishlists) without clear, granular consent for *each specific use* (e.g., targeted ads vs. order fulfillment).
- 2.Retaining purchase history data indefinitely or for periods significantly exceeding the stated purpose (e.g., keeping 10 years of clothing purchases for a dormant customer).
- 3.Sharing customer purchase data with third-party marketing agencies or data brokers without explicit, verifiable consent.
The Immediate Fix
Immediately audit your data inventory to identify all systems (CRM, ERP, analytics platforms) storing purchase history. Implement a **data retention schedule** for this data type, ensuring deletion or anonymisation once the stated purpose is fulfilled. Update your privacy policy with clear, purpose-specific language regarding purchase data processing and provide an easy mechanism for users to exercise their **Right to Erasure**.
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