SAP is always creating new versions of its products and releasing them to customers. There are two main categories for updates:
Correcting errors and changes in the locations of the countries
Keeping the interfaces updated makes it possible for the company to reduce investments on support, abiding by the fiscal and taxation regulations of the countries and increases the utilization of the best business practices.
Updating project normally consist in the application of update packages and validation of processes and existing developments in the interface, to make sure there are no impacts on the operation of the company due to the new implemented version.