On the Change History tab, you can view the modification records of the parameters of a tenant. The information includes the parameter name, value before and after change of each parameter, the time when a parameter is modified, and the operation user.
Procedure
Log on to OCP. By default, the Cluster Overview page appears.
In the left-side navigation pane, click Tenants .
In the Tenants section of the Tenant Overview page, click name of the tenant that you want to view.
In the left-side navigation pane of the page that appears, click Parameter Management .
Click the Change History tab.
You can filter parameters by specifying Date of Modification and Parameter Name. The Parameter Name field supports fuzzy match.

In the search results, view the history of parameter changes.