You can use logging to record and store changes to the entries of a table. To activate logging, select the Log Data Changes checkbox in the technical settings. Selecting the flag in the ABAP Dictionary is not sufficient to trigger logging. Logging is only performed if it is enabled in the system profile parameter rec/client. 

 

The setting for the parameter rec/client

Setting	Description
rec/client = ALL	Log all clients
rec/client = 000[...]	Log specified clients only
rec/client = OFF	Logging is deactivated in this system