Contracts can be of many types, for example.B. sales contracts (including leasing), sales contracts, partnership agreements, commercial agreements, and intellectual property agreements. It may happen that what has been agreed in a treaty needs to be changed at a later date. A number of bases can be used to support a subsequent amendment, so that the whole Treaty remains applicable under the new agreement. Typical commercial contracts include work letters, sales invoices, orders, and supply contracts. Complex contracts are often required for construction projects, highly regulated goods or services, goods or services with detailed technical specifications, intellectual property (IP) agreements, outsourcing and international trade. Most larger contracts require the effective use of contract management software to support administration between multiple parties. A contract is a legally binding agreement in writing or orally between the parties referred to in the agreement, with a view to fulfilling the conditions set out in the agreement. The application of a contract is subject, inter alia, to the condition that the contracting parties accept the terms of the claimed contract. . . .