With the Azure Key Vault automated key rotation feature, now genarally available, you can set a rotation policy on a key to schedule automated rotation and configure expiry notifications through Event Grid integration.
This feature enables end-to-end zero-touch key rotation for Azure services data encryption with customer-managed key (CMK) stored in Azure Key Vault.
Automated key rotation feature will be billed per scheduled rotation. To learn more about pricing, visit the Azure Key Vault Pricing | Microsoft Azure.
To learn more, please read documentation on configuring key auto-rotation in Azure Key Vault.