You can restrict access to master records in order to prevent unauthorized changes. Depending on how you organize your master data, you can assign authorizations for maintaining this data. For example, one user may have authorization to maintain all master data, while another may have authorization to maintain only accounting master data.

You can even assign authorizations for different types of processing. All users could have authorization to display master records while only a limited group of users may be able to create and change master data.