By default, contacts activities subpanel combines the calls, tasks,meetings, in addition to that I need to add my custom module to the activities subpanel list. I have created menu item and it works fine in creating a record. But created record does not display on my contacts activities subpanel.
Can you please provide the step by step to get the above list.
There is no step-by-step available, what you’re asking is a very specific customization.
That subpanel is quite specific itself - it’s a special place where SuiteCRM aggregates information from different modules. You would need to find the code for that subpanel, and change it to add your module there. It requires coding.