...
Commitments are typically agreed to at the beginning of the year or even earlier at the end of the preceding year.
Scaled discounts can be set up based on the amount spent by a publisher/agency in a year. Additionally, commitments can store agreements made with agencies about commission earnings or third-party commissions for intermediaries.
You see different Commitments types available in more detail in Wiki Knowledge: 4.16.8 Commitment Condition Use Cases and check for the following use cases: Rebate in Kind, Scaled Discount, Special Discount, Agency Earning and Third Party Commission.
...
Who can benefit from using it?
...