Problem description
In server-side encryption scenarios, the x-oss-server-side-encryption field is set to KMS and other fields are valid, but Key Management Service (KMS) is not activated.
Causes
KMS is not activated. Server-side encryption based on KMS-managed keys in Object Storage Service (OSS) requires KMS to be activated and available.
Examples
For example, the error is returned if x-oss-server-side-encryption is set to KMS and other fields are valid, but KMS is not activated.
Solutions
Activate KMS and complete configurations required for KMS encryption in OSS.