Hi,
1. Yes, you can use non valuated GR for services.
2. Pros : 1. The expenses are booked at invoice posting
2. If any difference between PO price will be adjusted at invoice posting.
3. It won't generated any accounting entry at GR. Due to this the data volume to be reduced.
4. Some auditors requirement is expense not booked until you receive the invoice. In this case it is best option for use.
Cons: 1. You cannot trace out how much value stands against GR received but not invoiced.
3. Any maintain charges booked through PO. In this case we create a service PO and make the PO as non valuated. When we create service entry sheet there will be no accounting entry generated. When you do invoice the below entry will book:
Expense A/c Dr
Vendor A/c Cr
Regards,
Mukthar