Business and service relationships can be challenging at the best of times, so it`s important to do everything in their power to clarify and agree on detailed expectations and commitments for both parties at the beginning of a delivery agreement. Suppliers and customers are extremely vulnerable to costly and distracting disputes if there is no written agreement that is referred to if necessary. These guidelines on service contracts are suitable for large organisations and will be too detailed and formal for many freelancers, independent suppliers and small businesses. Adapt the degree of detail and formality to your situation. Large, complex agreements may have been added to many pages of complex SLAs, which are returned in the “Service Description” and “Vendor Responsibilities” section.