API Consumption management/control is provided by DM-APIM with the following capabilities:
A backend rate limit can be defined. This is separate from the API's rate limiting policy. This ensures that the backend resources are not overloaded
To track usage of external APIs against consumption quotas based on API call limits, a usage policy can be attached to the API and the gateway will ensure that the usage is limited to the defined limit
Consumption management features work based on total consumption across a distributed deployment. The product architecture includes a network-centric global counter that maintains count across distributed gateway deployment