Subscription Usage Event Messages REST Endpoints

Subscription Usage Events/Subscription Usage Event Messages
The usage event messages resource is used to view, create, update, and delete an usage event message.
Get all usage event messages
Method: get
Path: /crmRestApi/resources/11.13.18.05/subscriptionUsageEvents/{EventNumber}/child/usageMessages
Get an usage event message
Method: get
Path: /crmRestApi/resources/11.13.18.05/subscriptionUsageEvents/{EventNumber}/child/usageMessages/{UsageMessageId}