Data Breach Notification. In the event of a data breach, notify relevant authorities and affected data subjects within a specified timeframe (usually 72 hours).
Additional considerations:
Data processing agreements. If you use third-party kazakhstan whatsapp number data 5 million to process customer data (e.g., payment gateways, marketing platforms), ensure that you have a robust data processing agreement in place that complies with GDPR requirements.
Data transfer considerations. If you transfer customer data outside the EU/EEA, please ensure that you have appropriate legal safeguards in place, such as standard contractual clauses approved by the EU Commission.

Data Protection Officer (DPO) (optional, but recommended). Consider appointing a Data Protection Officer (DPO) to oversee your GDPR compliance efforts, especially for larger e-commerce businesses.
Remember: GDPR compliance is an ongoing process. Stay informed of updates to the regulation and adjust your practices accordingly. Consulting with a data privacy professional may be helpful, especially for complex e-commerce operations.