Receiving Services as Materials in order not to perform goods receipt

I am on a project that is implementing SRM in May. The company has decided to upload 15 Vendors for Services and to perform the goods receipts in order to achieve a 3 way match. One of the Vendors (Huge Spend) will not get a goods receipt performed as no one wants to perform the goods receipt (this was just decided yesterday). We will create the shopping cart and SRM PO and pay the invoices in R/3. In order to do this we have to enter the shopping cart as a material in order not to have a goods receipt performed in SRM (as I am told). Has anyone ever experienced this? Is there any problems that we, as a company, may not be aware of Is there someone out there that has experienced this or close to this? Please advise. Thanks