"We realize that we can probably save a few bucks by working with Expedia, or direct booking with our preferred vendors," Mr. Catlette said.

"Changes in preferred vendors can be made at any time," the catalog said.

At the same time, the spokesman said, selection as a "preferred vendor" did not depend on the size of the promotional allowance.

Under the deal, Sun will become a preferred vendor of technology like server computers to Sprint.

Tandem also said that System Integrators would become its preferred vendor to the newspaper industry, formalizing a relationship that has existed for about 10 years.

According to Ms. Howard of the restoration association, insurance companies often work with preferred vendors and send one they trust to a site after they have been notified.

My preferred vendor is LastPass.

Neiman Marcus did not issue any such credits, but referred existing customers to preferred vendors to replace their service.

Second, Hewlett-Packard will displace its competitor, Lexmark International, as the preferred vendor for printers through Compaq.

"It has to be global, has to have the opportunity for unit growth and have significant opportunities for our preferred vendors" - that is, suppliers who guarantee the lowest prices.