service works when u sell the items to customer , if it got repair then he will submit it company(who is using Navision) , then company will create the service order for that customer to repair that item.
But My requirement is that we Implemented navision to company A , it is manufacturing company. This company has lot of machines.
when one machine struck , then company will send that machine for repair purpose to out side.
From Company A side, it is NOT a Work Order, as the job is done by outside party.
If you happen to send together with machine the Defect list + work order FOR THEM to do, you may call it so, but its only heading on paper, not a Work Order from Navision point of view.
You may call it whatever you want - here we have misunderstanding of terminology then.
Once more - what you described, is NOT A WORK ORDER from Navision point of view, or terminology. Steven told you already, how this scenario should be handled in Navision.
I would suggest you ask this question in the Indian Forum. If it used by EVERYONE I would guess the functionality is in the Indian layer. If not then all of your colleagues will have implemented it so can share the experiences they have had with it.