The value of dynamic parameters can be changed in productive operation. When a profile parameter is changed dynamically, the current value of the parameter on the instance or across the system is replaced with the new value. This dynamically changed value is valid for as long as the server is running. When the application server is restarted, the values from the profiles (kernel, default, or instance profile) are re-read and reset. This means that a dynamically changed parameter value is only valid for the runtime of the application server. If you want changes to remain valid after the application server has been restarted, you have to make the changes in the appropriate profile.
In the profile parameter maintenance (transaction RZ11) you can:
Change profile parameters dynamically, provided they are able to be changed dynamically
Metadata (icon:
The relevant documentation of a profile parameter (icon:
You can maintain profile parameters in transaction code RZ11.
The following describes how to change the value of a profile parameter dynamically: