One way to develop a functional requirement that the system perform a daily validation to check something and depending on this result, perform some specific action (such as creating an activity), could be with a unix cron.
It is a very simple way to execute a process with the periodicity that we indicate and in which we will give as input parameters the date in question and a .sh file that contains what we want to execute.

The cron is an OS process (a daemon) that is running in the background and is configured as follows:
* * * * * * fichero.sh
where each asterisk corresponds to time: minute – hour – dia_mes – month – dia_semana – user (optional) and command or script
The file .sh what it has is basically a call to the WF (where all the logic will be to check what we want and then perform the action we indicate) by command line from the server manager (srvrmgr), indicating the parameters of gateway, enterprise, siebel server, user, pass and the component we want to execute, in this case the WfProcMgr, in the parameter with ProcessName we must specify the name of our workflow.

So, to develop our solution, it will be enough to configure the crontab file and include a line like this:
01 6 * * * * Mi_archivo.sh
This line tells the crontab to run the Mi_archivo.sh file at 6 a.m. at 1 a.m. every day.
Do not forget to give the necessary permissions to the sh file so that it can be executed.

