Business data objects are changed frequently. We recommend that you log these changes for objects that are critical or susceptible to audits. You may find it helpful, and sometimes necessary, to be able to trace or reconstruct such changes later, for example for investigation or auditing purposes. SAP NetWeaver Application Server (AS) ABAP logs changes to business data objects in change documents.
SAP NetWeaver AS for ABAP does not automatically use change documents for business objects. You must activate the process.