Within a long-term entitlement, customers must specify the support time available each month.

However, the current feature does not have the ability to divide the available support time on a monthly basis during entitlement period.

When this feature is implemented, it will be very convenient for customers.

Create an entitlement

https://docs.microsoft.com/en-us/dynamics365/customer-service/create-entitlement-define-support-terms-customer#create-an-entitlement