crmc_action_job processing log

Hi Experts,

I need to develop a custom code where for a given action in crmc_action_job I have to find the action processing log information like date/time of processing and error message. I have the guid of the action i.e OS_GUID in table PPFTTRIGG. From a given OS_GUID I have to find the log information. Is there a table/fm that can be used. Please provide your inputs.