it works by consolidating and combining services between business units and headquarters into one separate entity that is based on principles similar to the market.3 min read a shared services agreement is a model for delivering corporate support. it works by consolidating and combining services between business units and headquarters into one separate entity that is based on principles similar to the market. they also need to be able to seek support services that meet the same standard. for business units to get a competitive advantage, best practices are in, and the corporate culture is out. the providers have to meet their requirements, and the providers will have their performance assessed using specific criteria that is easily measurable. a shared services agreement is most easily approved legally when it is drafted to be short and sweet. another important tip for drafting a shared services agreement is to use easy-to-understand language. there is no requirement that a drafted agreement contain verbose legalese in order to be upheld in a court of law.