# Cost optimization
<a name="cost-optimization"></a>

 The digital sovereignty lens doesn't add any new best practices to the cost optimization pillar. Best practices already defined under the [cost optimization pillar](https://docs.aws.amazon.com/wellarchitected/latest/cost-optimization-pillar/cost-optimization-pillar.html) provide adequate advice. 

## Related cost pillar best practices
<a name="related-cost-pillar-best-practices"></a>
+  [COST01-BP05 Report and notify on cost optimization](https://docs.aws.amazon.com/wellarchitected/latest/cost-optimization-pillar/cost_cloud_financial_management_usage_report.html) 
+  [COST01-BP07 Keep up-to-date with new service releases](https://docs.aws.amazon.com/wellarchitected/latest/cost-optimization-pillar/cost_cloud_financial_management_scheduled.html) 
+  [COST01-BP08 Create a cost-aware culture](https://docs.aws.amazon.com/wellarchitected/latest/cost-optimization-pillar/cost_cloud_financial_management_culture.html) 
+  [COST04-BP02 Implement a decommissioning process](https://docs.aws.amazon.com/wellarchitected/latest/cost-optimization-pillar/cost_decomissioning_resources_implement_process.html) 
+  [COST04-BP05 Enforce data retention policies](https://docs.aws.amazon.com/wellarchitected/latest/cost-optimization-pillar/cost_decomissioning_resources_data_retention.html) 
+  [COST08-BP01 Perform data transfer modeling](https://docs.aws.amazon.com/wellarchitected/latest/cost-optimization-pillar/cost_data_transfer_modeling.html) 
+  [COST08-BP02 Select components to optimize data transfer cost](https://docs.aws.amazon.com/wellarchitected/latest/cost-optimization-pillar/cost_data_transfer_optimized_components.html) 
+  [COST08-BP03 Implement services to reduce data transfer costs](https://docs.aws.amazon.com/wellarchitected/latest/cost-optimization-pillar/cost_data_transfer_implement_services.html) 
+  [COST10-BP01 Develop a workload review process](https://docs.aws.amazon.com/wellarchitected/latest/cost-optimization-pillar/cost_evaluate_new_services_review_process.html)