Hi,

The prices in the Price List tab  not Item Description are only selling prices.  Entries there have no effect on vendor invoice pricing.

As far as I know, Per-Item Cost on an item added to a vendor invoice will come from:

any Vendor Quote or Purchase order that has been converted into an invoice,

Previous purchase cost for that item from any vendor,

or (in Quantum, possibly in Premium?) from the Suppliers tab's comparative tracking information for that vendor, for that inventory item.

Using Service Items on purchase invoices is still worthwhile, because it saves typing of the description, and shows instantly when filling out a Purchase Order or invoice what the last pricing was, to help alert you to vendor pricing changes.  In Quantum (possibly in Premium as well) there are purchase reports that can show how many wire wheels or mop heads or whatever you're buying in a year, from where, and at what cost.

Hi Randy, thank you for clarifying that. I still can't find the source of this service item's rate. I think I will just  create a new Service Item. Thank you again

"Pricing" tab is your SELLING price to your customers.
The "old" price you are seeing on a VENDOR purchase when you buy is automatically gleaned from your past purchases. When receiving new stock, you'll be aware when entering that your cost changed, so you'll be aware to consider whether to change your selling price. 

If it is pulling up a price at all here, you are using an "inventory" item rather than a "service" item. When you use a service item code, the price field remains blank.

If this is a recurring purchase of service ... create a new purchase invoice, use a service code, enter 1 hour at your current cost and then store this purchase. Then when you recall the stored transaction your desired remembered price will be there, and you only need to change the number of hours.

Guinnie said:

I still can't find the source of this service item's rate.

Sage 50 works differently from QuickBooks.  There's no 'Cost' field for any inventory or service item in Sage 50*

* Unless you are using the Quantum (not PRO) Edition.  In the Quantum Edition there is a screen in the item's 'Suppliers' tab to fill out various vendors' cost price.