Attachments are not coming to work order from maintenance plan.

Hi Friends

After attaching documents in IP02 for a maintenance plan, we are scheduling plan in IP10 and creating the work order.

However, no attachments are flowing to work order when we display work order in IW32. For some reason, we want a solution to bring all the attachments from plan to work order.

As there is no standard solution to do this in SAP PM module, can you pls help me to understand how we can build up the custom solution to do this as I am new to PM module?.

I need to understand what user exit/function modules /BADIs are available. Thanks in advance