HCP Vault has integrated with Datadog's Vector to meet the observability needs of its customers by shipping metrics and audit logs to various SaaS data platforms, including Grafana Cloud and Splunk SaaS. The decision to use Vector was driven by its vendor-agnostic design, flexibility in handling data transformation, and robustness towards network partitions. HCP Vault's integration with Vector aims to provide a unified solution for customers to analyze their Vault usage insights tailored to their specific use cases, while minimizing the complexity of data ingestion across different platforms.