External service scenarios for equipment

Hi SAP Gurus

There are two type of external services scenario.

1) external vendor comes in company and perform the operations for this we create PR-PO-Gate entry sheet ML81N.

2) Material goes out side the company at the Callan . First we create the non valuated code and generate the stock using 561 movement type and then material goes at challan .

Now these two process I have to implement in PM Module. So please suggest how we can make these process in PM

Thanks

Regards

Gaurav