I have a requirement for having service purchase orders from Vendors.

My Environment in AX 2012 R3.

I need to have Request for quotation for service items

If i want to elaborate more,

our client is a software company it does not have any items in the item master.

Most of the request for quotation or Purchase order will be for service request like AC maintenance, house keeping service etc.

in such cases the line items should be varying a lot with as required by the user and as required by the situation.

now i am in need of help on below points

1. Can the requirement be handled with Accounts payable module?

2. Procurement and sourcing OR Service Management Module should be configured ?

Note :One more point of clarification is we do not have Enterprise portal configured.

we need to utilize the standard existing workflows available in the product.

Please help me arrive at some conclusion as i am exploring more on functional side , 

Basically i am an Technical consultant.