Final answer:
In a Usage Subscription, the number of Service Providers (SPs) that can be linked depends on the specific terms and conditions of the subscription.
Step-by-step explanation:
In a Usage Subscription, you can link multiple Service Providers (SPs). The number of SPs that can be linked depends on the specific terms and conditions of the subscription.
Some Usage Subscriptions may have a limit on the number of SPs that can be linked, while others may not have any limitations. It is important to review the documentation or contact the provider of the subscription to determine the exact number of SPs that can be linked.