Use API Management properties to manage secrets and global values in API Management policies

With the release of Azure API Management properties, each API Management service instance has a properties collection of key/value pairs that are global to that service instance. You can use these properties to manage constant string values, including secrets, across all API configuration and policies.Properties can contain literal strings, policy expressions, and secrets. They can be used in API Management policies as complete or partial element and attribute values.You can use properties to:

• Store any secrets that are used in policies outside the policy statements themselves.
• Store attribute values that are used in more than one policy and can be changed in one place if needed.

To get started using properties, see How to use properties in Azure API Management policies.