You can set the length of time Enterprise Cash Management (ECM) data remains present in the database at the enterprise and property levels.
In the Enterprise Management Console (EMC), select the Enterprise level, click Setup, Enterprise Parameters, and Miscellaneous.
In the Purging section, set the Days To Keep for ECM Transaction Detail. This is the number of days from the time a transaction is reported to the enterprise that the application retains it for use in reporting and auditing (for example, from 1 day to 999 days). After the number of days to keep expires, a scheduled event purges the ECM data.